Gaya APA

Fachri, . (2012). Persamaan Garis Lurus = Straight Line Equation Jilid 2 (Cet 1). Jakarta: Ghina Walafafa.

Gaya MLA

Fachri, . "Persamaan Garis Lurus = Straight Line Equation Jilid 2". Cet 1 Jakarta: Ghina Walafafa, 2012. text.