Zhakupova Gulmira Nurtaevna, и Sagandyk Assem Talgatovna. 2020. «DEVELOPMENT OF TECHNOLOGY OF YOGHURT BY USING ACID WHEY». Academic Scientific Journal of Chemistry, вып. 4 (сентябрь):51-57. https://journals.nauka-nanrk.kz/chemistry-technology/article/view/452.