APA (7th ed.) Citation

Ismail, S. Z. (1995). An improvement of a telephone hand-set for high DB response persons / Siti Zauyah Ismail.

Chicago Style (17th ed.) Citation

Ismail, Siti Zauyah. An Improvement of a Telephone Hand-set for High DB Response Persons / Siti Zauyah Ismail. 1995.

MLA (9th ed.) Citation

Ismail, Siti Zauyah. An Improvement of a Telephone Hand-set for High DB Response Persons / Siti Zauyah Ismail. 1995.

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