Boonyarat, Ronnarit, Poonsup Sripara, Namrin Boonmawongsa, Boonsong Benjangkaprasert, Thanet Thanukarn, and Weerasak Mahama. “Effectiveness of iron supplementation and education in preventing iron deficiency anemia among frequent blood donors with low hemoglobin levels”. Archives of Allied Health Sciences 37, no. 1 (March 19, 2025): 48–57. accessed April 4, 2025. https://he01.tci-thaijo.org/index.php/ams/article/view/273299.