Elisabeth Tampubolon, Gita Rismayani, Friska Silaban, Morina Br Ginting, and Fajar Sidik Siregar, “The Influence Of Physical Education On The Physical And Mental Development Of Grade 4 Students At State Elementary School 056427 Adin Tengah”, OJE, vol. 3, no. 2, pp. 15–18, Aug. 2024, doi: 10.61730/oje.v3i2.218.