"The total graph of a commutative ring," Journal of Algebra 320 (2008) 2706–2719

"Some finiteness conditions on the set of overings of a phi-ring," Houston Journal of Math 34(2) (2008), 397-407

"On 2-absoring ideals of commutative rings," Bulletin Australian Math. Society 75(2007),417-429

"On Pseudo-almost valuation domains," Comm. Algebra 35(2007), 1167-1181

"On the zero-divisor graph of a ring," (accepted), to appear in Comm. Algebra.