Gaya APA

m.pd., D, T, W, A, ,. (1972). Improving Aural Comprehension . [s.i.]: the university of michigan press.

Gaya MLA

m.pd., Drs., Tri, Wintolo, A, ,. "Improving Aural Comprehension". [s.i.]: the university of michigan press, 1972. Text.