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Kropholler, P.H. and Pride, S.J. and Othman, W.A.M. and Wong, K.B. and Wong, P.C. (2010) Properties of certain semigroups and their potential as platforms for cryptosystems. Semigroup Forum, 81 (1). pp. 172-186.
Wong, P.C. and Tang, C.K. and Gan, H.W. (2010) Weak potency of fundamental groups of graphs of groups. Bulletin of the Malaysian Mathematical Sciences Society, 33 (2). pp. 243-251.
Wong, P.C. and Tang, C.K. (1999) Cyclic Subgroup Separability of Certain HNN Extensions of Finitely Generated Abelian Groups. Rocky Mountain Journal of Mathematics, 29 (1). pp. 347-356. ISSN 0035-7596, DOI https://doi.org/10.1216/rmjm/1181071695.
Wong, P.C. (1997) Subgroup Separability of Certain HNN Extensions of Finitely Generated Abelian Groups. Rocky Mountain Journal of Mathematics, 27 (1). pp. 359-365. ISSN 0035-7596, DOI https://doi.org/10.1216/rmjm/1181071967.
Wong, P.C. (1993) Subgroup Separability of Certain HNN Extensions. Rocky Mountain Journal of Mathematics, 23 (1). pp. 391-394. ISSN 0035-7596, DOI https://doi.org/10.1216/rmjm/1181072631.
Wong, P.C. and Koay, H.L. (1992) Generalized Free Products of πc Groups. Rocky Mountain Journal of Mathematics, 22 (4). pp. 1589-1593. ISSN 0035-7596, DOI https://doi.org/10.1216/rmjm/1181072675.
