Hughes, Edward
Hughes : electrical technology
Longman, 1995
 Buku Teks SO
Hughes, Edward
Hughes electrical technology
John Wiley & Sons, 1987
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Hughes, Edward
Hughes electrical technology
Longman, 1991
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Bird, J.O.
Electrical principles and technology for engineering
Newnes, 1995
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Lewis, Maurice
Electrical installation technology 2
Stanley Thornes, 1993
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