On lower and upper intension order relations by different cover concepts. - M. H. Ghanim; Heba I. Mustafa; S. Abd El Aziz (Inf. Sci., 2011)

On rough approximations via ideal. - Osama A. E. Tantawy; Heba I. Mustafa (Inf. Sci., 2013)

A new approach of attribute reduction of rough sets based on soft metric. - Heba I. Mustafa; Osama A. E. Tantawy (J. Intell. Fuzzy Syst., 2020)