Setiadi, Ni Made Thari, et al. “Variation of Size and Duration of Zeolite Activation With KMnO4 On California Papaya Variety Characteristics During Storage”. Jurnal BETA (Biosistem Dan Teknik Pertanian), vol. 12, no. 1, Apr. 2024, pp. 25-31, doi:10.24843/JBETA.2024.v12.i01.p03.