Ussavadilokrit, Mongkol, and Winai Muadsri. 2021. “Problems in Requesting Return of the Letter of Guarantee for the Preparation of Utilities of the Real Estate Project”. KKBS Journal of Business Administration and Accountancy 5 (2):161-78. https://so04.tci-thaijo.org/index.php/kkbsjournal/article/view/245457.