Cvetanovska Gjorgjevska, Marija, and Zorica Arsova Sarafinovska. “REGULATION OF ELEMENTAL IMPURITIES IN MEDICINES: IMPLEMENTATION OF ICH Q3D AND ANALYTICAL CHALLENGES”. KNOWLEDGE - International Journal 73, no. 4 (December 14, 2025): 713–718. Accessed May 10, 2026. https://ojs.ikm.mk/index.php/kij/article/view/7960.