Chumnumporn, K., C. Jeenanunta, and A. Pongathornwiwat. “The Impact of Hotel Capabilities on Innovations”. Journal of Applied Statistics and Information Technology, vol. 2, no. 2, June 2018, pp. 50-60, https://ph02.tci-thaijo.org/index.php/asit-journal/article/view/165724.