Alfiani, Nofita, Koddam Rukadi L, and Frida Agung Rakhmadi. “Resistance Characteristics of Soil Fertility”. Proceeding International Conference on Science and Engineering 2 (March 1, 2019): 131–132. Accessed August 18, 2026. http://sunankalijaga.org/prosiding/index.php/icse/article/view/70.