Xoliqova Surayyo Bahodirjon qizi. “UCH PERPENDIKULYAR TEOREMASI HAQIDAGI NAZARIY QARASHLAR ”. Ta’lim Innovatsiyasi Va Integratsiyasi, vol. 48, no. 2, July 2025, pp. 197-9, https://scientific-jl.com/tal/article/view/24213.