Gaya APA

Berg, T., Brouwer, W. (1991). Teacher Awareness of Student Alternate Conceptions About Rotational Motion and Gravity . New York: A Wiley-Interscience Publication.

Gaya MLA

Berg, Terrance., Brouwer, Wytze. "Teacher Awareness of Student Alternate Conceptions About Rotational Motion and Gravity". New York: A Wiley-Interscience Publication, 1991. Jurnal.