Winka, Winka Naida. “Penerapan Optimalisasi Keterampilan 4c (Creative Thinking, Critical Thinking And Problem Solving, Communication, Collaboration) Dalam Pembelajaran Contextual Oral Language Skills”. Jurnal Ilmiah KORPUS 7, no. 3 (December 29, 2023): 391–399. Accessed June 29, 2025. https://ejournal.unib.ac.id/korpus/article/view/28743.