Sinuhaji, D., Ginting, F. Y. A. and Sembiring , J. A. (2026) “The Effectiveness of Using Picture Series Media on Students’ Writing Skills in Narrative Text at SMP St. Petrus Medan”, Jurnal Educatio FKIP UNMA, 12(2), pp. 353–359. doi: 10.31949/educatio.v12i2.18795.