Ludwig, Ernest E.
Applied process design for chemical and petrochemical plants. Volume 1 / Ernest E. Ludwig
Gulf Publishing Company, 1964
 Buku Teks
Ludwig, Ernest E.
Applied process design for chemical and petrochemical plants. Volume 3 / Ernest E. Ludwig
Gulf Publishing Company, 1965
 Buku Teks
Ludwig, Ernest E
Applied process design for chemical and petrochemical plants. Volume 3 / Ernest E. Ludwig
Gulf Publishing Company, 1965
 Buku Teks
Ludwig, Ernest E.
Applied process design for chemical and petrochemical plants. Volume 2
Gulf Publishing, 1979
 Buku Teks
Ludwig's applied process design for chemical and petrochemical plants. Volume 3 / A. Kayode Coker
Gulf Professional, 2015
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