PERWATA, A. (1980). I am secretary (everyday conservation). Karya Utama.
芝加哥风格引文PERWATA, Annie. I Am Secretary (everyday Conservation). Jakarta: Karya Utama, 1980.
MLA引文PERWATA, Annie. I Am Secretary (everyday Conservation). Karya Utama, 1980.
警告：这些引文格式不一定是100％准确.