On semicompact sets and associated properties. Sarsak, Mohammad S. — 2009 International Journal of Mathematics and Mathematical Sciences
More on rc-Lindelöf sets and almost rc-Lindelöf sets. Sarsak, Mohammad S. — 2006 International Journal of Mathematics and Mathematical Sciences
Weak forms of continuity and associated properties. Sarsak, Mohammad S. — 2008 International Journal of Mathematics and Mathematical Sciences