Pajarudin, K. et al. 2024. PEDAGOGICAL CONTENT KNOWLEDGE (PCK) MATERI TRIGONOMETRI SUDUT ISTIMEWA DENGAN GEOGEBRA DI SMA. Numeracy. 11, 2 (Oct. 2024), 170–183. DOI:https://doi.org/10.46244/numeracy.v11i2.2859.