oktania cahya ramadhanty, Rohmatullaily, and Leni Legasari. “Analisis Kadar Nitrogen Total Pada Pupuk Urea Menggunakan Metode Kjedahl Di PT Pupuk Sriwidjaja Palembang”. Sains: Jurnal Kimia dan Pendidikan Kimia 13, no. 1 (August 12, 2024): 6–11. Accessed September 29, 2024. https://sains.uho.ac.id/index.php/journal/article/view/52.