PHOTODEGRADATION EFFECT ON OPTICAL PROPERTIES OF MANGOSTEEN PERICARP, BLACK GRAPE PEEL AND VIOLET BOUGAINVILLEA FLOWERS AS PHOTOSENSITIZER FOR SOLAR CELL APPLICATION . J. Teknol. 2021, 83 (5), 109-117. https://doi.org/10.11113/jurnalteknologi.v83.16729.