Situmorang, Roganti, Erikson Saragih, and Karisma E. Tarigan. 2020. “AN ANALYSIS ON THE ERRORS IN USING SIMPLE PAST TENSE MADE BY STUDENTS AT CLASS VIII-C IN SMP TRISAKTI I MEDAN”. Kairos English Language Teaching Journal 2 (1):64-78. https://doi.org/10.54367/kairos.v2i1.725.