“THE EFFECT OF FERTILIZING SWALLOW MANURE ON THE GROWTH OF LIBERICA COFFEE (Coffea Liberica) in Peat Media”. Journal of Agro Plantation (JAP) 1, no. 2 (October 26, 2022): 74–84. Accessed December 15, 2025. https://jurnal.politap.ac.id/index.php/jap/article/view/1242.