Худойбердиев, Ж., and Р. Холиқова. “ТРАНСПОРТ ХИЗМАТЛАРИ КЎРСАТИШ РАҚОБАТБАРДОШЛИГИНИ ОШИРИШ ЙЎЛЛАРИ”. RESEARCH AND EDUCATION, vol. 2, no. 5, May 2023, pp. 11-19, https://researchedu.org/index.php/re/article/view/3813.