FATONI, Ahmad; MUHFAHROYIN, Muhfahroyin; SUJARWANTA, Agus; SUTANTO, Agus; WIDOWATI, Hening. The Effectiveness of Coffee Leather Organic Fertilizer on The Productivity of Red Spinach (Amaranthus Tricolor L.) . Jurnal Penelitian Pertanian Terapan, [S. l.], v. 20, n. 3, p. 198–203, 2020. DOI: 10.25181/jppt.v20i3.1678. Disponível em: https://jurnal.polinela.ac.id/index.php/jppt/article/view/1678. Acesso em: 17 sep. 2026.