Gaya APA

Sari, P, Y, D, A., Hum, R, A, E, M. (2013). An Experimental Study of Diphthongal Phonetics Development in Acquiring Correct English Pronounciation of the Eight Grade Students of SMP IT Nurul Islam Tengaran in the Academic Year 2012/2013 . Salatiga: STAIN Salatiga.

Gaya MLA

Sari, Philip, Yasika, Dia, Artha., Hum, Rifqy, Aulia, Erlangga,, M.. "An Experimental Study of Diphthongal Phonetics Development in Acquiring Correct English Pronounciation of the Eight Grade Students of SMP IT Nurul Islam Tengaran in the Academic Year 2012/2013". Salatiga: STAIN Salatiga, 2013. Text.