Abstract
The target of this study is to apply the notion of neutrosophic soft sets to the theory of BCK-modules by introducing the notion of neutrosophic fuzzy soft BCK-submodules and deriving their basic properties. Also, (alpha, beta, gamma)-soft top of neutrosophic fuzzy soft sets in BCK-modules is presented. The concept of Cartesian product of neutrosophic fuzzy soft BCK-submodules is defined and some results are investigated. Finally, an application of neutrosophic fuzzy soft sets in decision making is investigated and an example demonstrating the successfully application of this method is provided.