Kusmayanti, I. N.; Hendryanti, R. Square Talks®: A Mobile App to Support EFL Learners’ Vocabulary Development. J. Engl. Lang. Teach. Fak. Pendidik. Bhs. Seni Program Studi Pendidik. Bhs. Ingg. IKIP Mataram 2021, 8, 139-151.