E. Sitorus, P. Sihombing, L. R. Panataria, and M. K. Saragih, “The Effect of NASA Liquid Organic Fertilizer and Chicken Manure on the Growth of Sweet Corn Plants (Zea mays saccharata Sturt)”, jppipa, pendidikan ipa, fisika, biologi, kimia, vol. 10, no. 8, pp. 4551–4560, Aug. 2024.