Danuarta, Muhammad Faizal, et al. “Respon Pertumbuhan Baby Kailan (Brassica Oleracea Var. Alboglabra) Terhadap Dosis Kompos Kulit Kopi Pada Tanah Ultisol”. Journal of Horticulture Production Technology, vol. 3, no. 1, Nov. 2025, pp. 38-45, doi:10.25181/jhpt.v3i1.4556.