Mahmudova, M., and R. Atkiyoyeva. “P.I. CHAYKOVSKIY IJODIDA ERTAK-EPIK JANRINING USTUNLIGI”. Educational Research in Universal Sciences, vol. 2, no. 8 SPECIAL, Aug. 2023, pp. 141-6, http://erus.uz/index.php/er/article/view/3635.