bunnag tej. In remembrance of The the Royal Grace of King Rama 9 and His Majesty’s Patronage for the Thai Red cross society. KPI journal [internet]. 2020 Sep. 1 [cited 2026 Sep. 1];14(3):81-90. available from: https://so06.tci-thaijo.org/index.php/kpi_journal/article/view/244196