Xalmatov Alisher Ilhomjonovich, Baratov Xatamjon Mahmudjon o'g'li, and Nabiyev Shukurjon Mirmuxsin o'g'li. “QATTIQ JISM MASALALARIDA KRONING - PENNI MODELI”. Journal of new century innovations 31, no. 3 (June 24, 2023): 35–37. Accessed April 11, 2025. https://newjournal.org/new/article/view/7955.