Jumayeva SF qizi. Vaqt bo‘yicha kasr tartibli uzulishli koeffitsiyentli diffuziya tenglamasi uchun aralash masala. SciEdu [Internet]. 2024Sep.29 [cited 2025Aug.17];5(9):21-7. Available from: https://www.openscience.uz/index.php/sciedu/article/view/7174