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
자기규정은 개인의 행동을 조절하는 데 중요합니다.jagi gyujeong-eun gaein-ui haengdong-eul jojeolhaneun de jungyohamnida.Self-regulation is important for controlling one's behavior.