Christianty, T. P. ., and S. G. A. Tauran. “Grammar Mastery and Speaking Ability Among Tenth-Grade Students”. SUMIKOLAH: Jurnal Ilmu Pendidikan, vol. 4, no. 1, Apr. 2026, pp. 34-41, doi:10.31154/sjip.v4i1.1522.34-41.