Fijri Astuti, Tia, Chalina Chalina, and Mangatur Sinaga. 2025. “Development of E-Module for Writing Negotiation Texts Assisted by Flipbooks for Grade XI High School Students”. Jurnal Onoma: Pendidikan, Bahasa, Dan Sastra 11 (2):1907-17. https://doi.org/10.30605/onoma.v11i2.5076.