B.SH.Qosimov, and B.A.Tursunov. 2025. “PORTLANDSEMENT ISHLAB CHIQARISHNING ISTIQBOLLARI”. ZAMONAVIY TA’LIMDA FAN VA INNOVATSION TADQIQOTLAR 3 (1):53-58. http://zamtadqiqot.uz/index.php/zt/article/view/1026.