Srimaha, Watinee, Veerakit Saorom, and Kochtamon Wongkham. 2019. “Strategic Management for Competitive Advantage of Small and Medium Enterprises (SMEs), Production Type in the Upper Northeastern Region 2”. Journal of Graduate MCU KhonKaen Campus 6 (4):670-87. https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/230197.