“Development of an Extractive Spectrophotometric Method for the Determination of Copper(II) in Leafy Vegetable and Pharmaceutical Samples Using 2–acetylpyridine 4–phenyl –3-Thiosemicarbazone (APPT)”. Momona Ethiopian Journal of Science (MEJS) 4, no. 2 (March 14, 2024): 70–83. Accessed September 16, 2024. https://journal.mu.edu.et/index.php/mejs/article/view/120.