APA (7th ed.) Citation

PERWATA, A. (1980). I am secretary (everyday conservation). Karya Utama.

Chicago Style (17th ed.) Citation

PERWATA, Annie. I Am Secretary (everyday Conservation). Jakarta: Karya Utama, 1980.

MLA (9th ed.) Citation

PERWATA, Annie. I Am Secretary (everyday Conservation). Karya Utama, 1980.