APA-viite (7. p.)
Gopal, M. (2003). Digital control and state variable methods: Conventional and neural-fuzzy control systems (2nd ed.). Tata McGraw-hill.
Chicago-viite (17. p.)
Gopal, M. Digital Control and State Variable Methods: Conventional and Neural-fuzzy Control Systems. 2nd ed. New Delhi: Tata McGraw-hill, 2003.
MLA-viite (9. p.)
Gopal, M. Digital Control and State Variable Methods: Conventional and Neural-fuzzy Control Systems. 2nd ed. Tata McGraw-hill, 2003.
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