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		Santika, Fiar, 		Suyanto, Hery, 		Trisnawati, Ni Luh, AND 		Indrayana, I Putu.
" Determination of the Optical Band gap Energy from the Extraction and Evaporation of Anthocyanin Compound Sea Lettuce (Ulva Lactuca L.) Using Tauc Plot Method" <em>BULETIN FISIKA</em> [Online], Volume 25 Number 1 (28 February 2024)