Walaiporn Sasiprapa และผู้แต่งคนอื่นๆ. (2012) Relationship between NDVI and Cassava Productivity in Kamphaeng Phet Province. <i>Thai Agricultural Research Journal</i>, <i>30</i>(3), 290-299.Walaiporn Sasiprapa และผู้แต่งคนอื่นๆ. "Relationship between NDVI and Cassava Productivity in Kamphaeng Phet Province". Thai Agricultural Research Journal 30 (2012):290-299.Walaiporn Sasiprapa และผู้แต่งคนอื่นๆ. Relationship between NDVI and Cassava Productivity in Kamphaeng Phet Province. Department of Agriculture:ม.ป.ท. 2012.