Toshmatova, M., & Yormuhammedova, Z. (2026). N-tartibli differensial tenglamalar hamda Yuqori tartibli differensial tenglamalarni yechishning Koshi usuli. Research and Implementation, 4(5/3), 162–163. извлечено от https://rai-journal.uz/index.php/rai/article/view/3126