Gaya APA
Frensidy, B. et al (2010).
Fundamental methods of mathematics for business and economics (Jilid 1) .
Jakarta:
Salemba Empat.
Gaya MLA
Frensidy, Budi. et al.
"Fundamental methods of mathematics for business and economics (Jilid 1)".
Jakarta:
Salemba Empat,
2010.
Text.