Study of telephone traffic / [mikrofilem]

Geahča maid

• Study of telephone traffic /
  Dahkki: 331327 Abdul Majid Abdullah
  Almmustuhtton: (1978)
• Remote telephone controller part (III) {mikrofilem}
  Dahkki: 458320 Zulkiflee Abd. Ghani
  Almmustuhtton: (1991)
• Microprocessor-based telephone home controller / [mikrofilem]
  Dahkki: 412074 Lee, Natalie Kit Ying
• Remote telephone controller (RTC)/
  Dahkki: 325790 Abdul Halim Said
• Microprocessor-based telephone home controller /
  Dahkki: 412074 Lee, Natalie Kit Ying, et al.
  Almmustuhtton: (1989)