BHATTACHARYYA, ANJANA. 2014. “On δ_p^α- Closed Sets, δ_p^α-Continuity and α-δ_P-Almost Compactness for Crisp Subsets in a Fuzzy Topological Space”. Caribbean Journal of Sciences and Technology 2 (01):251-56. https://caribjscitech.com/index.php/cjst/article/view/129.