Razzaqov Javoxir Davlatovich. 2026. “Nochiziqli Differensial Tenglamalarda o‘zgaruvchan Koeffitsiyentlarning Yechim Barqarorligiga ta’sirini Baholashning Takomillashtirilgan Matematik Usullari”. SCIENCE AND CULTURE: INNOVATIONS OF THE 21ST CENTURY 2 (09):105-9. https://www.globalscholars.uz/index.php/scic/article/view/2612.