Klymyshyn O, Karpenko H. Methodological and Methodical Principles of the Empirical Study of Spiritual Development of a Personality . jpnu [Internet]. 2017 Jun. 15 [cited 2024 Apr. 29];4(1):42-7. Available from: https://scijournals.pnu.edu.ua/index.php/jpnu/article/view/3050