Lekhan, V. N., L. V. Kryachkova, і G. S. Kanyuka. 2014. «Study of Psychological Bases of Leadership Competency Formation of Managers of Public Health Institutions». Медичні перспективи 19 (4):165-69. https://doi.org/10.26641/2307-0404.2014.4.35815.