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
소시오그램은 사회적 관계를 시각적으로 나타내는 도구입니다.sosio-geuraemeun sahoejeok gwangyereul sijakjeogeuro natanaeneun doguimnida.A sociogram is a tool that visually represents social relationships.