Jumayeva SF qizi. Vaqt bo‘yicha kasr tartibli uzulishli koeffitsiyentli diffuziya tenglamasi uchun aralash masala. SciEdu [Internet]. 2024Sep.29 [cited 2024Oct.16];5(9):21-7. Available from: https://openscience.uz/index.php/sciedu/article/view/7174