Wanjira, Kezzy, и Benson Wanjiru. «Interrelation Between Cognitive Development and Personality Traits Among Adolescent Boys: A Study in Public Day Secondary Schools in Kirinyaga East Sub‑County, Keny»a. Russian Journal of Education and Psychology 16, no. 5 (октябрь 31, 2025): 356-375. просмотрено январь 12, 2026. http://rjep.ru/jour/index.php/rjep/article/view/831.