Srihanu เนติ, and Kaewplang ศิวา. 2021. “Positional Accuracy Evaluation of Google Earth Using RTK GNSS Network Surveying Case Study: Mahasarakham Province”. Journal of Applied Informatics and Technology 4 (1):32-47. https://ph01.tci-thaijo.org/index.php/jait/article/view/244728.