Palupi, Nurul Puspita, et al. “The EFFECT OF CORN STALKS COMPOST AND RABBIT URINE ON THE CHEMICAL PROPERTIES ( N, P, K) OF ULTISOLS : PENGARUH PEMBERIAN KOMPOS BATANG JAGUNG DAN URIN KELINCI TERHADAP SIFAT KIMIA TANAH ( N, P, K) ULTISO”. Agrifarm: Jurnal Ilmu Pertanian, vol. 10, no. 1, July 2021, pp. 35-38, https://journal.uwgm.ac.id/agrifarm/article/view/1064.