Saya mau tau Cathetan suku dari George Sorocold. Jelaskan dalam bahasa jawa

Ward, Robert London's New River London, Historical Publications (2003) ISBN 978-0-948667-84-8

A. W. Skempton: A biographical dictionary of civil engineers in Great Britain and Ireland, s. 642-644. Thomas Telford, 2002. ISBN 978072772939