Kanjanawanawan S, Sahunan S. Production Factors Model in Economics and the Hospitality Industry in Thailand 4.0. Journaldtc [Internet]. 2020 Apr. 10 [cited 2024 May 7];13(1):369-7. Available from: https://so01.tci-thaijo.org/index.php/journaldtc/article/view/241031