Sopha, Gina Aliya, Catur Hermanto, Huub Kerckhoffs, Julian A Heyes, and James Hanly. “Response of Selected Chemical Properties of Extremely Acidic Soils on the Application of Limes, Rice Husk Biochar and Zeolite”. Journal of Degraded and Mining Lands Management 10, no. 1 (October 1, 2022): 4011–4017. Accessed March 15, 2025. https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/1324.