Agustin F, L., S. Abdoellah, and C. Bowo. “Use of Cocopeat and Zeolite As a Seedling Media for Cocoa and Its Response to Some Levels of Available Water”. Pelita Perkebunan (a Coffee and Cocoa Research Journal), Vol. 26, no. 1, 1, doi:10.22302/iccri.jur.pelitaperkebunan.v26i1.121.