N.V.Valiyev. “KIMYO O‘QITUVCHILARINING KASBIY KOMPETENSIYALARIGA OID AYRIM MASALALAR XUSUSIDA”. CONFERENCE OF NATURAL AND APPLIED SCIENCES IN SCIENTIFIC INNOVATIVE RESEARCH, vol. 1, no. 1, Jan. 2024, pp. 125-30, https://universalpublishings.com/index.php/cnassir/article/view/4010.