Gaya APA

P.Becker, J., Shimada, S. (1997). Pend.Bahasa Inggris. The Open- Ended Approach:A New Proposal For Teaching Mathematics (-). Virginia USA: The New English Library LTD.

Gaya MLA

P.Becker, Jerry., Shimada, Shigeru. "Pend.Bahasa Inggris. The Open- Ended Approach:A New Proposal For Teaching Mathematics". - Virginia USA: The New English Library LTD, 1997. Text.