1.
S. Yahya Mohamed, P. Umamaheswari. Vague positive implicative filter of BL- algebras. Malaya J. Mat. [Internet]. 2020 Jan. 1 [cited 2024 Nov. 21];8(01):166-70. Available from: https://www.malayajournal.org/index.php/mjm/article/view/1362