Maskumambang, Dedy, et al. “Analysis of Land Suitability Level and Efficiency of Corn Farming Business in Kempo District, Dompu”. Jurnal Penelitian Pendidikan IPA, vol. 7, no. SpecialIssue, Dec. 2021, pp. 351-8, doi:10.29303/jppipa.v7iSpecialIssue.963.