Coba jelasin Cathetan suku dari White Watson dalam bahasa jawa dong

The Derbyshire Archaeological Journal, 1889

Ford, Trevor D. 'White Watson and his Géological Sections', Proceedings of the Géologist's Association, vol 71 part 4, 1960. Paper received by the Association 09.05.1958

Ford, Trevor D. 'White Watson: Pioneer Derbyshire Géologist', Bulletin of the Peak District Mines Historical Society, Vol.1 No.7 (October 1962), pp. 27–37.