Zakaria, Fauzan, and - Nurdin. “Increasing Rice Productivity by Manipulation of Calcium Fertilizer in Ustic Endoaquert”. Research in Agriculture Livestock and Fisheries 3, no. 1 (May 26, 2016): 15–26. Accessed December 22, 2024. https://banglajol.info/index.php/RALF/article/view/27854.