Pimpan, S. ., C. . Ruaguttamanun, and K. . Wongkhae. “Sustainable Marketing Strategy and Marketing Success of ISO 14001 Certified Manufacturing Businesses in Thailand”. Journal of Humanities and Social Sciences Thonburi University, vol. 15, no. 3, Aug. 2021, pp. 37-48, https://so03.tci-thaijo.org/index.php/trujournal/article/view/250685.