Kuncara, R.B. and Roni Afriansya 2023. THE EFFECT OF CHOLECALCIFEROL (VITAMIN D3) LEVELS ON VARIOUS TIMES AND DURATIONS OF EXPOSURE TO ULTRAVIOLET LIGHT (SUN EXSPOSURES). Jurnal Biosains Pascasarjana. 25, 2 (Dec. 2023), 117–122. DOI:https://doi.org/10.20473/jbp.v25i2.2023.117-122.