Silalahi, L., R. M. Simamora, and A. S. P. Sari. “ERROR ANALYSIS IN USING SIMPLE PRESENT TENSE IN DESCRIPTIVE PARAGRAPHS MADE BY THE SEVENTH GRADE STUDENTS OF SMP KATOLIK TRISAKTI 1 MEDAN”. Kairos English Language Teaching Journal, vol. 3, no. 2, July 2020, pp. 63-78, doi:10.54367/kairos.v3i2.830.