[1] Y. Imai and K. Iseki : On axiom systems of propositional calculi. XIV, Proceedings of the Japan Academy.,vol.42, pp.
19-22(1966)
[2] K. Iseki: An algebra related with a propositional calculus,Proceedings of the Japan Academy., vol.42, pp. 26-29 (1966)
[3] Q. P. Hu and X. Li: On BCH algebras Mathematics Seminar Notes, vol. 11, pp. 313-320, (1983)
[4] J. Negger, S. S. Ahn, and H. S. Kim: On Q algebras, International Journal of Mathematics and Mathematical Sciences, vol. 27, no. 12, pp. 749-757, (2001)
[5] Ravi Kumar Bandaru: On BRK Algebras, International Journal of Mathematics and Mathematical Sciences vol. 2012, Article ID 952654
[6] Y. B. Jun, E. H. Roh, and H. S. Kim: On BH algebras, Scientiae Mathematicae Japonica, vol. 1, no. 3, pp. 347-354 (1998)
[7] C. B. Kim and H. S. Kim: On BM algebras, Scientiae Mathematicae Japonica, vol 63, no. 3, pp. 421-427 (2006)
[8] H. Yisheng, : BCI algebra, Science press, China, pp. 1-92 (2006)
[9] Andrzej Walendziak: On BM-algebra and related topics, Mathematica Slovaca .(2014)