Aramyok, T. and Inwang, K. (2019) “Innovative Enterprise Development Model for Petrochemical Industry, PTT Public Company Limited’s Subsidiaries”, Ph.D. in Social Sciences Journal, 9(1), pp. 127–139. Available at: https://so05.tci-thaijo.org/index.php/phdssj/article/view/118238 (Accessed: 25 April 2024).