APA (7th ed.) Citation

LAPP, R. E. (1982). Materi. Tira Pustaka.

Chicago Style (17th ed.) Citation

LAPP, Ralph E. Materi. Tira Pustaka, 1982.

MLA (8th ed.) Citation

LAPP, Ralph E. Materi. Tira Pustaka, 1982.

Warning: These citations may not always be 100% accurate.