Buathong, Thawit, Narissara Sujchaphong, and Chutima Ruanguttamanun. 2019. “The Effect of Seven Marketing Activity Levers (7As) and Expectations of Service on Hotel Service Performance in Thailand”. Human Behavior, Development and Society 20 (3):73-84. https://so01.tci-thaijo.org/index.php/hbds/article/view/175489.