Wongvairoj, Methavee, Supakron Subsai, Siripong Prasomkit, Kanyarat laotrakul, and Katesunee Sukploy. “A Study on the Ecotourism Model ‘Khao Sok One-day trip Program’ in Surat Thani Province Provided by Love Family Tour and Travel Company”. Institute of Vocational Education Southern Region 3 Journal (KRIS Journal) 2, no. 2 (December 6, 2022): 59–66. accessed June 28, 2025. https://so08.tci-thaijo.org/index.php/KRIS/article/view/3231.