Samonkridsana, Arunsiri, and Navarat Waichompu. “Perceived Factors Affecting the Decision to Vaccination Against COVID-19 Among Children Aged 6 Months to 4 Years of Parents in Singhanakhon District, Songkhla Province”. Princess of Naradhiwas University Journal 15, no. 2 (May 15, 2023): 211–224. Accessed May 3, 2024. https://li01.tci-thaijo.org/index.php/pnujr/article/view/257933.