APA Style

The Life saver. (1998). Yogyakarta: PPPI.

Chicago Style

The Life saver. . Yogyakarta: PPPI, 1998. .

MLA Style

The Life saver. . Yogyakarta: PPPI, 1998. .

Turabian Style

The Life saver. Yogyakarta: PPPI, 1998. .