Siranee, Intaranongpai, Jarawee, Kanetapilak, Jiraporn, Chatsupakul, AND Sunipa, Motam. " Factors Influencing Covid-19 Booster Decision Making among Elderly with Chronic Disease in Northeast Thailand" Jurnal Keperawatan Soedirman [Online], Volume 21 Number 1 (16 March 2026)