Introduction to graph theoryKoh Khee Meng, Dong Fengming, Tay Eng Guan · First published 2007Open the Tome
Principles and Techniques in CombinatoricsChen Chuan-Chong, Koh Khee-Meng · First published 1992Open the Tome
An algorithm for determining [illustration of the symbol chosen to stand for the Frattini sublattice] in finite distributive latticesKhee Meng Koh · First published 1975Open the Tome
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