Darwis, Valeriana. “Improved Outlook Cropping Index Rice Field In Indonesia (Case : Central Sulawesi Province)”. IJRDO-Journal of Agriculture and Research (ISSN: 2455-7668) 2, no. 12 (December 31, 2016): 01-19. Accessed May 18, 2024. https://ijrdo.org/index.php/ar/article/view/140.