Al Hazimi, N. E., Y. Heryatun, P. R. Perdana, and M. Marjuni. “Investigating Speaking Ability Through Intrapersonal Intelligence On Efl Learners: A Systematic Literature Review”. Jurnal Penelitian Ilmu Pendidikan Indonesia, vol. 4, no. 2, June 2025, pp. 1181-90, doi:10.31004/jpion.v4i2.340.