T.Shodiyev. “YETKAZIB BERISH TIJORAT SHARTLARI ASOSIDA TOVARLARNING STATISTIK QIYMATINI ANIQLASH XUSUSIYATLARI ”. TADQIQOTLAR.UZ, vol. 49, no. 2, Oct. 2024, pp. 81-90, https://scientific-jl.org/index.php/tad/article/view/1638.