Arlinayanti, K. D., N. N. Sariyani, and I. W. Gara. “EFFORTS TO INCREASE ENGLISH LEARNING ACHIEVEMENT WITH THE APPLICATION OF THE LEARNING MODEL JIGSAW COOPERATIVE”. International Journal of Language and Literature, vol. 4, no. 4, Feb. 2021, pp. 195-9, doi:10.23887/ijll.v4i4.40884.