Smirnov, D. A., A. P. Zhukov, O. Y. Aparina, O. N. Lauta, and D. V. Zakalyapin. 2019. “Use of the Transformational Leadership Model in Police Management”. Amazonia Investiga 8 (20):236-41. https://amazoniainvestiga.info/index.php/amazonia/article/view/90.