1.
Purba R, Butar-butar LE. Improving Students’ Achievement on Writing Procedure Text by Using Group Investigation Strategy at SMK Sandhy Putra Medan. JME [Internet]. 2020Feb.1 [cited 2026Oct.11];2(1):99-102. Available from: https://ejournal.poltek-amimedan.ac.id/index.php/jme/article/view/20