Gaya APA

.A, E, S. et al (2009). Theory And Application Of Biology 2, For Grade XI Of Senior High School And Islamic Senior High School . Solo: T.S.

Gaya MLA

.A, Eka, Sandara. et al. "Theory And Application Of Biology 2, For Grade XI Of Senior High School And Islamic Senior High School". Solo: T.S, 2009. Text.