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]. 2020 Apr. 30 [cited 2024 Nov. 22];5(1):11-20. Available from: https://journal.unj.ac.id/unj/index.php/spektra/article/view/14790