SITUMORANG B. BEBERAPA FAKTOR PENENTU KOMPETENSI GURU SD PESERTA PLPG di PROPINSI SUMATERA UTARA. JH [Internet]. 2014 Sep. 4 [cited 2025 Jan. 31];1(2). Available from: http://103.242.233.34/index.php/handayani/article/view/1272