The College of Science, Department of Mathematics, discussed a PhD. thesis entitled "The Study of Soft Set Theory and its Applications in the Q/p algebra" by postgraduate student Moataz Sajid Sharqi. The thesis aims to study the structure of commutative Q-algebras (CQ-As). It focuses on normal subsets and commutative subfields of Q, as well as their relationship to commutative Q-ideals. A large portion of the chapter is devoted to the outer direct product of CQ-As, where it is proven that this construction preserves the CQ-A structure and its substructures.