Wulandari, Oktaviana, Retno Firdiyanti, and Rahmita Laily. 2022. “The Efforts to Improve Children’s Expressive Language Ability through Picture Book Media (Big Book)”. Jurnal Perempuan Dan Anak 5 (1):30-43. https://doi.org/10.22219/jpa.v5i1.20717.