Ryskulbek, S., Mamyrbayev, O., & Turganbayeva, A. (2021). CLASSIFICATION OF PEOPLE BY PSYCHOLOGICAL PERSONALITY TYPES BASED ON THE HISTORY OF CORRESPONDENCE. Известия НАН РК. Серия физико-математическая, (1), 45–53. извлечено от http://89.250.84.46/physics-mathematics/article/view/267