Ezra Prana Alta, Desrihastuti, T. Edy Sabli, and Saripah Ulpah, “PENGARUH POC KULIT NANAS DAN NPK ORGANIK TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L.)”, dp, vol. 41, no. 3, pp. 355–364, Feb. 2026.