K. Khairunnisa, “INTERNAL MODIFICATION IN REQUESTING USED BY EFL LEARNERS”, J. Engl. Lang. Teach. Fak. Pendidik. Bhs. Seni Program Studi Pendidik. Bhs. Ingg. IKIP Mataram, vol. 1, no. 1, pp. 24–36, Feb. 2020.