APA (7th ed.) Citation

Goh, O. S., Ong, L., & Tor, S. (1993). Easy Guide for Windows 3.1. Pustaka Timur Jaya.

Chicago Style (17th ed.) Citation

Goh, Ong Sing, L.L Ong, and S.C Tor. Easy Guide for Windows 3.1. Pustaka Timur Jaya, 1993.

MLA (9th ed.) Citation

Goh, Ong Sing, et al. Easy Guide for Windows 3.1. Pustaka Timur Jaya, 1993.