บัวสุวรรณ ก, โลจนสิริศิลป เ. Analysis of Contribution Margin to Support Business Decision Making: A Case Study of A Hotel in Muang District, Surat Thani Province. Innovationstou [internet]. 2022 Oct. 22 [cited 2025 Apr. 16];2(2):63-75. available from: https://so04.tci-thaijo.org/index.php/InnovationStou/article/view/256905