Afifah NIAZ, Pristiwati R. Validity of Speaking Skills Teaching Materials for Persuasive Speech Texts Based on the Deep Learning Approach Assisted by Mobile Learning. JPBPP [Internet]. 2026 Jul. 10 [cited 2026 Nov. 9];6(8):12. Available from: https://journal3.um.ac.id/index.php/fip/article/view/8223