Wathanakom, N. “The Causal Relationship Between Alternative COVID-19 Vaccine Marketing Mix and Service Quality of Private Hospitals With the Decision to Reserve Vaccine Among Working Adults Living Bangkok”. Rajapark Journal, vol. 16, no. 46, May 2022, pp. 374-88, https://so05.tci-thaijo.org/index.php/RJPJ/article/view/258493.