Boranbayeva Togzhan, Tulemissova Zhanar, Ozkaya Serkan, и Khussainov Damir. «EFFECT OF PROBIOTIC "LACTOBACTERIN-TK2 &Quot; ON IMMUNOBIOLOGICAL STATUS OF NEWBORN CALVES IN THE THERAPEUTIC AND PROPHYLACTIC OF GASTROINTESTINAL DISEASES». «Вестник НАН РК», вып. 1, февраль 2020 г., сс. 26-32, http://189185.vm7pq.group/bulletin-science/article/view/679.