Nurlybek Abdimutalip, Zhuldyz Tulpan, и Klara Gul. «STUDY OF THE INFLUENCE OF BIOREGULATORS ON THE PRODUCTIVITY AND DEVELOPMENT OF PLANTS GROWN BY HYDROPONICS». «Вестник НАН РК», вып. 1, февраль 2021 г., сс. 35-41, http://89.250.84.46/bulletin-science/article/view/138.