An Analysis of English Speaking Materials in the Textbook “Bahasa Inggris SMA” based on Dat Bao’s Theory at the Eleventh Grade of SMA Swasta Santu Xaverius Gunungsitoli 2022/2023. edukasia [Internet]. 2023 Aug. 12 [cited 2026 Feb. 1];4(2):1471-84. Available from: https://www.jurnaledukasia.org/index.php/edukasia/article/view/466