Wongvairoj, M., S. Subsai, S. Prasomkit, K. laotrakul, and K. 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), vol. 2, no. 2, Dec. 2022, pp. 59-66, https://so08.tci-thaijo.org/index.php/KRIS/article/view/3231.