Alridiwirsah, Hamidah H, Erwin MH, Muchtar Y. 2015. Tolerance test of several rice varieties (Oryza sativa L.) to shade. Jurnal Pertanian Tropik 2 (2): 93-101. DOI: 10.32734/jpt.v2i2.2889. [Indonesian]

Anita, Tabrani G, Idwar. 2016. Growth of arabica coffee seeds (Coffea arabica L.) in peat medium at various shade levels and nitrogen fertilizer doses. Jom Faperta 3 (2): 1-9. [Indonesian]

Arief MCW, Tarigan M, Saragih R, Rahmadani F. 2011. Field School Guide-Conservation Coffee Cultivation, Sharing Experiences from Dairi District, North Sumatra Province. Conservation International Indonesia, Jakarta. [Indonesian].

Arisandi DP. 2015. Response to Physiological Characteristics and Growth of Robusta Coffee Seeds (Coffea canephora) Clone BP 358 and BP 308 at Various Shade Levels [Undergraduate Thesis]. Universitas Jember, East Java. [Indonesian]

Artina M, Suhardjadinata, Natawijaya D, Hani A. 2021. The effect of planting media and shade intensity on the growth of arabica coffee seeds (Coffea arabica L.) as plant material for agroforestry patterns. Jurnal Perbenihan Tanaman Hutan 9 (2): 87-95. DOI: 10.20886/bptpth.2021.9.2. [Indonesian]

Asra R, Samarlina RA, Silalahi M. 2020. Plant Hormones. UKI Press, Jakarta. [Indonesian]

Bote AD, Struik PC. 2011. Effects of shade on growth, production and quality of coffee (Coffea arabica) in Ethiopia. J Hortic For 3 (11): 336-341. DOI: 10.5897/JHF.9000045.

Directorate General of Plantations. 2018. Indonesian Plantation Statistics. Ministry of Agriculture, Jakarta. [Indonesian]

FAO [Food and Agriculture Organization of United Nations]. 2003. WTO Agreement on Agriculture: The Implementation Experience - Developing Country Case Studies. Commodity Policy and Projections Service, Commodities and Trade Division, Food and Agriculture Organization of the United Nations, Rome. https://www.fao.org/3/y4632e/y4632e0l.htm#bm21 FAO [Food and Agriculture Organization of United Nations]. 2014. Crops and Livestock Products. Food and Agriculture Organization of the United Nations, Rome. http://faostat.fao.org.

Febriyanti NLPK. 2016. Induction of Shoot Growth from Orchid (Dendrobium heterocarpum Lindl.) Explants with the Application of Zeatin and NAA Hormones [Thesis]. Udayana University, Bali. [Indonesian]

Ferita I, Akhir N, Fauza H, Syofyanti E. 2009. Effect of light intensity on gambir seed growth (Uncaria gambir Roxb). Jerami 2 (2): 249-254. [Indonesian]

Harahap AD, Nurhidayah T, Saputra SI. 2015. The influence of giving tofu dregs compost on growth of robusta coffee (Coffea canephora pierre) seeds under oil palm plants shade. Jom Faperta 2 (1): 1-12. [Indonesian]

Hidayati RI, Subroto G. 2018. Growth of coffee seeds (Coffea sp.) results of hypocotyledonous continuation as a response to application of various kinds of concentrations of growth regulators. Agritrop 16 (1): 149-163. DOI: 10.32528/agr.v16i1.1559. [Indonesian]

Mahadi I, Syafi’I W, Agustiani S. 2015. Tissue culture of Calamansi fruits (Citrus microcarpa) by using hormones kinetin and Naphthalene Acetyl Acid (NAA). Jurnal Dinamika Pertanian 30 (1): 37-44. [Indonesian]

Muliasari AA, Wachjar A, Supijatno. 2016. Optimization of shading intensity p there is growth of arabica coffee seeds (Coffea arabica L.). Proceedings of the Indonesian National Seminar on Vocational Education: 97-108. [Indonesian]

Sholikhah U, Munandar DA, Pradana AS. 2015. Physiological character of robusta coffee clone BP 358 on different shade types. Journal of Agrovigor 8 (1): 58-67. DOI: 10.21107/agrovigor.v8i1.749. [Indonesian]

Sitompul FA, Siregar EH, Roesma DI, Dahelmi, Prasetya E. 2018. Molecular identification of coffee (Coffea arabica) pollinator insects in North Sumatra, Indonesia based on designed COI primers. Biodiversitas 19: 1877-1883. DOI: 10.13057/biodiv/d190539.

Soleh MA, Sirait TA, Ariyanti M, Rosniawaty S. 2021. Physiological and agronomic responses of coffee seeds to different shade densities. Jurnal Kultivasi 20 (2): 129-134. DOI: 10.24198/kultivasi.v20i2.32882. [Indonesian]

Sudrajat, Siagian NA. 2014. Effect of phosphor and potassium fertilizer on palm oil (Elaeis guineensis Jacq.) growth at main nursery. Agrovigor 7 (2): 105-116. DOI: 10.21107/agrovigor.v7i2.1445. [Indonesian]

Suherman, Kurniawan E. 2015. Diversity stomata of the leaves coffee on various treecrops in agroforestry system. Jurnal Galung Tropika 4 (1): 1-6. DOI: 10.31850/jgt.v4i1.7. [Indonesian]

Widiastoety D. 2014. Effect of auxin and cytokinin on the growth of mokara orchid plantlets. J Hortic 24 (3): 230-238. DOI: 10.21082/jhort.v24n3.2014.p230-238. [Indonesian]