Panjaitan NI, Ginting EM. Improving Grade VIII Students™ Vocabulary Achievement By Using Personal Vocabulary Notes In SMP SANTA MARIA MEDAN. TRANSFORM [Internet]. 12 Juni 2012 [dikutip 30 September 2026];1(2). Tersedia pada: https://jurnal.unimed.ac.id/2012/index.php/jelt/article/view/729