Mohammed , K. S. ., Y. . Elhadary, N. . Samat, and N. Q. . Omar. “GIS and Remote Sensing Techniques for Measuring Agriculture Land Loss in Balik Pulau Region of Penang State, Malaysia”. Asian Journal of Agriculture and Rural Development, vol. 5, no. 2, Feb. 2015, pp. 30-41, https://archive.aessweb.com/index.php/5005/article/view/1377.