APA (7th ed.) Citation

Amin, H., & Kassim, F. (1993). Frequency shift keying modem system / Hanim Amin and Fadhilah Kassim.

Chicago Style (17th ed.) Citation

Amin, Hanim, and Fadhilah Kassim. Frequency Shift Keying Modem System / Hanim Amin and Fadhilah Kassim. 1993.

MLA (9th ed.) Citation

Amin, Hanim, and Fadhilah Kassim. Frequency Shift Keying Modem System / Hanim Amin and Fadhilah Kassim. 1993.

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