@Article{, title={New types of contra-precontinuous functions}, author={Fawzi mutter al-makdamee}, journal={Journal of College of Education مجلة كلية التربية}, volume={}, number={1}, pages={213-220}, year={2013}, abstract={in this work, we introduce new types of contra-precontinuous functions byusing preopen sets, also we study some properties of these types and showsrelationships between these types.

} }