D.A. Tleuzhanova, D.S. Kurmanova, A.A. Beisembaeva, и M.N. Nurgabylov. «PROBLEMS AND PROSPECTS OF SUSTAINABLE DEVELOPMENT OF AGRICULTURE». Reports, вып. 1, февраль 2019 г., сс. 143-147., https://journals.nauka-nanrk.kz/reports-science/article/view/1404.