ahyar, J., M. . Yusri Ibrahim, and M. . Husin. “First Language Contribution to Second Language Learning and Foreign Language Development In The Town of Lhokseumawe”. Jurnal Indonesia Sosial Sains, vol. 4, no. 12, Dec. 2023, pp. 1279-84, doi:10.59141/jiss.v4i12.949.