Siti Nurain binti Nizam, Lee Yit Leng, Siti Nurain binti Nizam, Norawanis Abdul Razak, Nur Lailina Makhtar, and Ras Izzati Ismail. “Synergistic Effects of Biochar, Urea Fertilizer, and Lactic Acid Bacteria on Mitigating Soil Ammonia Volatilization”. Advanced and Sustainable Technologies (ASET) 4, no. 1 (June 10, 2025): 160–166. Accessed June 24, 2025. https://ejournal.unimap.edu.my/index.php/aset/article/view/2108.