Gaya APA

Bitter, G, G., Mikesell, J, L. (1990). Using the math explorer calculator : a sourcebook for teacher . Singapore: [s.n].

Gaya MLA

Bitter, Gary, G., Mikesell, Jerald, L,(peng.tambahan). "Using the math explorer calculator : a sourcebook for teacher". Singapore: [s.n], 1990. Text.