Indriani, Marlina Surya, et al. “FINDING GRAMMATICAL ERRORS IN THE DESCRIPTIVE TEXT WRITTEN BY THE EIGHTH GRADERS OF SMP MARKUS MEDAN”. Jurnal Pendidikan Dan Konseling (JPDK), vol. 5, no. 4, Aug. 2023, pp. 841-52, doi:10.31004/jpdk.v5i4.18210.