“EFFECT OF DEMOGRAPHIC ASPECTS ON  THE PERFORMANCE RADIOGRAPHER DURING  THE COVID-19 PANDEMIC IN BALI, INDONESIA: ROLE OF SELF-EFFICACY IN ONLINE TRAINING”. The Southeast Asian Journal of Tropical Medicine and Public Health, vol. 54, no. Suppl 2, Jan. 2024, pp. 236-52, https://journal.seameotropmednetwork.org/index.php/jtropmed/article/view/1006.