Gaya APA

Soeprapto, F, &, D, M. (2005). Linked to the World : English for High School Grade XI Science Program (2005) . Jakarta: Yudhistira.

Gaya MLA

Soeprapto, FA, &, Darwis,, Mariana. "Linked to the World : English for High School Grade XI Science Program (2005)". Jakarta: Yudhistira, 2005. Printed Book.