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Dewi R, Krisman K, Zulkarnaen Z, Syahraini RA, Husein TL. THE DETERMINATION OF BARIUM STRONTIUM TITANATE THIN FILM BAND GAP ENERGY Ba0,15Sr0,85TiO3 USING ULTRAVIOLET-VISIBLE SPECTROSCOPY. SPEKTRA [Internet]. 2020Apr.30 [cited 2024Apr.27];5(1):11 -20. Available from: https://journal.unj.ac.id/unj/index.php/spektra/article/view/14790