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
산업심리학은 직장에서의 인간 행동을 연구합니다.san-eob simlihak-eun jikjang-eseo-ui in-gan haengdong-eul yeongu-hamnida.Industrial psychology studies human behavior in the workplace.