Lezel N. Mernilo, Randy L. Caga-anan
      On pre_I-open sets in ideal tritopological spaces
      Applied Mathematical Sciences, Vol. 9, 2015, no. 69, 3419-3429
      http://dx.doi.org/10.12988/ams.2015.52172

Copyright © 2015 Lezel N. Mernilo and Randy L. Caga-anan. This article is distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.