Noerdin I. On Methylene Blue and Its Zinc Thiocyanate Complex in Connection with A New Spectrophotometric Determination of Zinc. J. Math. Fund. Sci. [Internet]. 2019Feb.6 [cited 2025Oct.5];3(2):63-94. Available from: https://journals.itb.ac.id/index.php/jmfs/article/view/9782