Rittiboonchai, Witit, and Pichaya U- Thairatana. “The Second Order Confirmatory Factor Analysis in Deciding to Visit the Beaches, Phetchaburi Province: From the Concept of Marketing Mix”. Souphanouvong University Journal Multidisciplinary Research and Development 6, no. 1 (May 5, 2020): 9–15. Accessed January 17, 2026. http://www.su-journal.com/index.php/su/article/view/236.