APA Style

Be serious!. (1992). Kuala Lumpur: Berita.

Chicago Style

Be serious!. . Kuala Lumpur: Berita, 1992. Book.

MLA Style

Be serious!. . Kuala Lumpur: Berita, 1992. Book.

Turabian Style

Be serious!. Kuala Lumpur: Berita, 1992. Book.