Fitrianto TF, Sandi MA, Salsyabilah N. Posture Assessment of Grade 1B Students of SDN Banyu Urip III with APECS Application . J. Early Child. Motor. Dev. [Internet]. 2026 Jun. 30 [cited 2026 Jul. 9];1(1):58-66. Available from: https://journals.smartmotionedu.id/index.php/jecmd/article/view/25