Gaya APA
Widjaja, I. et al (1986).
Applesoft basic / Henry Mullish, Dov Kruger; a;ih bahasa, Irwan Widjaja (Cet.1).
Jakarta:
Multi Media.
Gaya MLA
Widjaja, Irwan. et al.
"Applesoft basic / Henry Mullish, Dov Kruger; a;ih bahasa, Irwan Widjaja".
Cet.1
Jakarta:
Multi Media,
1986.
Textbook.