Hawari, Hadromy, Suwardji Suwardji, and Husni Idris. “The Role of Biochar and Combination of Inorganic Fertilizers and Biological Fertilizers in Increasing Yield and Levels of Brix Sorghum (Sorghum Bicolor (L.) Moench) in Dry Land”. Jurnal Penelitian Pendidikan IPA 7, no. 3 (July 12, 2021): 437–442. Accessed May 4, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/729.