bunnag, tej . “In Remembrance of The the Royal Grace of King Rama 9 and His Majesty’s Patronage for the Thai Red Cross Society”. King Prajadhipok’s Institute Journal, vol. 14, no. 3, Sept. 2020, pp. 81-90, https://so06.tci-thaijo.org/index.php/kpi_journal/article/view/244196.