Wongwilai , P., and P. . Klunklin. “Impacts of Working Process Perception of Northern Associate Medical Science Clinic Entrepreneurs on Marketing Success”. KKBS Journal of Business Administration and Accountancy, vol. 6, no. 1, May 2022, pp. 16-33, https://so04.tci-thaijo.org/index.php/kkbsjournal/article/view/247317.