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Narayu Pittayapreechanon. 1996. Effective surveys of ro-ro passenger ferries. , University of Strathclyde;
Narayu Pittayapreechanon. (1996) Effective surveys of ro-ro passenger ferries . University of Strathclyde/Glasgow.
Narayu Pittayapreechanon. Effective surveys of ro-ro passenger ferries. . Glasgow:University of Strathclyde, 1996.
Narayu Pittayapreechanon. (1996) Effective surveys of ro-ro passenger ferries . University of Strathclyde/Glasgow.