SIPAYUNG, D. A. P. .; TAMPUBOLON, S. .; SILITONGA, H. . The Effect of Applying Role Play Technique on Students’ Speaking Ability at Grade Ten of SMA Swasta HKBP Nommensen Pematangsiantar. Journal of Innovative and Creativity, [S. l.], v. 5, n. 2, p. 171–180, 2025. DOI: 10.31004/joecy.v5i2.154. Disponível em: https://joecy.org/index.php/joecy/article/view/154. Acesso em: 16 oct. 2026.