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. (2023). EDUKASIA Jurnal Pendidikan Dan Pembelajaran, 4(2), 1471-1484. https://doi.org/10.62775/edukasia.v4i2.466