Marbun, Nova, Asima Rohana Sinaga, and Christian Neni Purba. 2024. “The Effect of Picture Series on Students Writing Ability in Narrative Text at Grade VIII of SMP Negeri 10 Pematang Siantar”. Innovative: Journal Of Social Science Research 4 (1):12060-73. https://doi.org/10.31004/innovative.v4i1.9333.