Gaya APA
Yani, I, A., Liang, G. (1981,1985).
Filsafat Matematika ( Philosophy Of Mathematics ) .
Yogyakarta:
Supersukses.
Gaya MLA
Yani, Ibu, A.., Liang, Gie,The.
"Filsafat Matematika ( Philosophy Of Mathematics )".
Yogyakarta:
Supersukses,
1981,1985.
Text.