sipayung DAP, Tampubolon S, Silitonga H. The Effect of Applying Role Play Technique on Students’ Speaking Ability at Grade Ten of SMA Swasta HKBP Nommensen Pematangsiantar. Joecy Journal [Internet]. 2025 Apr. 4 [cited 2026 Oct. 16];5(2):171-80. Available from: https://joecy.org/index.php/joecy/article/view/154