“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)”. 2024. Momona Ethiopian Journal of Science (MEJS) 4 (2): 70-83. https://journal.mu.edu.et/index.php/mejs/article/view/120.