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Dyfyniad Arddull ChicagoSOGE, Paulinus. A Reading Programme for Civil Engineering Students. Yogyakarta: Penerbitan Universitas Atma Jaya, 1983.
Dyfyniad MLASOGE, Paulinus. A Reading Programme for Civil Engineering Students. Penerbitan Universitas Atma Jaya, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.