Turdiyev, H.; Bahodirova, D. Xotirali Birinchi Tartibli Integro – Differensial Tenglamalar Sistemasi Uchun Teskari Masala: Xotirali Birinchi Tartibli Integro – Differensial Tenglamalar Sistemasi Uchun Teskari Masala. mp 2024, 1.