YOUTH SOCIAL WITHDRAWAL AND HIKIKOMORI-LIKE BEHAVIORS: A MIXED-SOURCE COMPARATIVE STUDY OF PSYCHOLOGICAL AND SOCIAL DETERMINANTS AMONG PAKISTANI UNIVERSITY STUDENTS AND JAPANESE EVIDENCE. (2026). International Journal of Social Sciences Bulletin, 4(3), 2812-2824. https://ijssbulletin.com/index.php/IJSSB/article/view/2661