C. C. . Tan, N. . . Phakdeephirot, and W. . . Sereewichayaswat, “Fieldtrip Advantages for Tourism Students: Contributing Towards Hierarchical Aspect of the Stimulus-Organism-Response (S-O-R) Theory”, Journaldtc, vol. 13, no. 3, pp. 164–179, Apr. 2020.