Retno, Dwi Putri, and Syawal. 2020. “Improving the Speaking Ability of The Eleventh Grade Students at SMA Negeri 1 Watang Pulu Through Peer Instruction Method”. La Parole : Journal of Language Teaching and Pedagogy 1 (1), 34-43. https://doi.org/10.31850/laparole.v1i1.450.