Gumilar, A., Putri, A. T., Dewi, M. A., & Ibrahim, S. (2025). SPECTROPHOTOMETRIC METHOD FOR DETERMINATION OF SELENIUM IN HEALTH SUPPLEMENTS USING 2,3 DIAMINONAPHTALENE AS COLORIMETRIC REAGENT. Acta Pharmaceutica Indonesia, 50(2), 89 - 94. https://doi.org/10.5614/api.v50i2.24847