NINGSIH, Y.; JAYANTI, E.; EFENDI, M. The Effect Of Liquid Organic Fertilizer Of Robusta Coffee On The Productivity Of Red Cry Chili (Capsicum annum L.). PENBIOS: JURNAL PENDIDIKAN BIOLOGI DAN SAINS, v. 5, n. 02, p. 46-50, 12 nov. 2020.