Pandiangan, E., Sembiring, N., & Pangaribuan, J. J. (2020). IMPROVING THE SEVENTH GRADE STUDENTS’ VOCABULARY MASTERY THROUGH WORD SEARCH PUZZLE AT SMP TRISAKTI 1 MEDAN. Kairos English Language Teaching Journal, 2(1), 1–16. https://doi.org/10.54367/kairos.v2i1.721