1.
Umar U, Daud W. The Use Of “Problem Posing Model” To Enhance Students’ Grammar Ability At The Second Grade Of Senior High School 1 Wawotobi. JPDK [Internet]. 2022 Sep. 6 [cited 2025 Dec. 14];4(5):438-43. Available from: https://journal.universitaspahlawan.ac.id/index.php/jpdk/article/view/6627