Mogi, Amelia Cindy, and Alfrits Roul Sinadia. “The Development of an English Achievement Test at a Private Senior High School in Manado”. SUMIKOLAH: Jurnal Ilmu Pendidikan 1, no. 2 (July 10, 2023): 1–14. Accessed November 10, 2025. https://nurturagrow.site/index.php/sumikolah/article/view/960.