“APPLICATION OF A COOPERATIVE LEARNING MODEL OF CONCEPT SENTENCE TYPE ASSISTED WITH SERIES OF PICTURES TO IMPROVE PARTICIPANTS’ NARRATIVE ESSAY WRITING SKILLS EDUCATION IN CLASS IV SDN 04 CUPAK SOLOK DISTRICT”. PIONIR: JURNAL PENDIDIKAN, vol. 13, no. 1, April 2024, hlm. 145-56, https://doi.org/10.22373/pjp.v13i1.22636.