เพ็งสุข ฐ. The Information Development of The Buddha’s Footprint Heritage Tourism-route by the Google API. Case Study: Bua-Bok Buddha’s Footprint in Udon Thani. rpujournal [Internet]. 2018 Sep. 30 [cited 2024 Apr. 20];4(2):52-63. Available from: https://so03.tci-thaijo.org/index.php/rpu/article/view/144173