Thongplew, N., and P. Vachajitpan. “SUPPLIER INTEGRATION AND FIRM PERFORMANCE IN THAI AUTOMOTIVE INDUSTRY: COMPARING PREDICTIVE MODELS”. Rajamangala University of Technology Tawan-Ok Research Journal, vol. 13, no. 1, June 2020, pp. 20-29, https://li01.tci-thaijo.org/index.php/researchjournal2rmutto/article/view/242536.