Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
소시오메트리의 연구는 사회적 관계를 분석하는 데 중요하다.sosio-me-teu-ri-ui yeongu-neun sahoejeok gwangye-reul bunseog-haneun de jung-yohada.Sociometric research is important for analyzing social relationships.