Manullang, Putri, Kammer Tuahman Sipayung, Nurhayati Sitorus, and Mula Sigiro. 2023. “The Influence Of Using Memrise Application On The Students’ Pronunciation Mastery Of The Eight Grade At SMPN 2 Girsang Sipangan Bolon”. Innovative: Journal Of Social Science Research 3 (2):555-70. https://j-innovative.org/index.php/Innovative/article/view/358.