APA (7th ed.) Citation

Elisya Izd. (2011). Pen merah pen biru. PTS One.

Chicago Style (17th ed.) Citation

Elisya Izd. Pen Merah Pen Biru. Selangor: PTS One, 2011.

MLA (8th ed.) Citation

Elisya Izd. Pen Merah Pen Biru. PTS One, 2011.

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