Samonkridsana, A., and N. 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, vol. 15, no. 2, May 2023, pp. 211-24, https://li01.tci-thaijo.org/index.php/pnujr/article/view/257933.