Zulfauzan Z, Syahni Z R, Mahdi M. Impact of Government Policy on Advantages and Competitiveness of Corn (Case Study in Tigo Nagari District, Pasaman District West Sumatera Province). IJSBAR. 2018;42(2):200-211. Accessed September 15, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/9454