Ashfaq, H. (2009). Switchgear and protection (2nd ed.). Khanna Book Publishing Co.
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Chicago-čujuhus (17. p.)
Ashfaq, Haroon. Switchgear and Protection. 2nd ed. New Delhi: Khanna Book Publishing Co, 2009.
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MLA-čujuhus (9. p.)
Ashfaq, Haroon. Switchgear and Protection. 2nd ed. Khanna Book Publishing Co, 2009.
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