Masruroh, Yulfah, Iskandar, and Elly Fatmasari. 2022. “English Language Learning Achievement in Public Middle-School 1 Kertanegara: The Effects of ‘Jigsaw’ Method”. ETDC: Indonesian Journal of Research and Educational Review 1 (4):571-80. https://doi.org/10.51574/ijrer.v1i4.371.