KHALAF, Alias B.; Z. IBRAHIM, Hariwan2019-04-222019-04-221303-5991http://hdl.handle.net/20.500.12575/61325https://doi.org/10.1501/Commua1_0000000773α-ℽ-convergence, α-ℽ- accumulation and α-ℽ- compactness043050