Ruamsit, S., and T. Boonyoo. “Causal Effects of Buying Attitudes toward Purchase Decisions of Construction Materials of Customers In Nong Bua Lam Phu Province”. Journal of Modern Learning Development, vol. 9, no. 12, Dec. 2024, pp. 293-04, https://so06.tci-thaijo.org/index.php/jomld/article/view/275611.