** M. Afkhami, M. Hassankhani and K. Khashyarmanesh**
The Cayley sum graph of ideals of a semigroup, pp.1-10

** J. Daengsaen and S. Leeratanavalee**
The ordered semilattice equivalence relations on ordered semihypergroups, pp.11-30

** M.L. Dassoundo**
Relative (pre-)anti-flexible algebrasnand associated algebraic structures, pp.31-46

** B. Davvaz and M. Alp**
Simplicial polygroups and the generalized Moore complexes, pp.47-62

**S. Ebrahimi Atani, M. Khoramdel and S.D.P. Hesari**
Rad-supplemented property in the lattices, pp.63-80

** R.M. Falcon**
A new quasigroup isomorphism invariant arising from fractal image patterns, pp.81-90

** Z. Khaki, H. Mohammadzadeh Saany and L. Nouri**
Characterization of monoids by condition (P_E), pp.91-100

** G. Klein and C. Zargeh**
Operadic approach to HNN-extensions of Leibniz algebras, pp.101-114

** S. Mahdavi, A. R. Ashrafi and M. A. Salahshour**
Normal subgyrogroups of certain gyrogroups, pp.115-122

** S.K. Maity, M.K. Sen, S. Swomin**
Weak multiplication semimodule, pp.123-132

** D.N. Moldovyan, A.A. Moldovyan, N.A. Moldovyan**
Structure of a finite non-commutative algebra set by a sparse multiplication table, pp.133-140

** T.K. Mondal**
Semirings which are union of principal left k-radicals, pp.141-148

** B. Osoba and T.G. Jaiyeola**
Algebraic connections between right and middle Bol loops and their cores, pp.149-160

** S. Sadhya and K. Hansda**
Generalized Green's relations and GV-ordered semigroups, pp.161-168

** D. Shinde and M. Gophane**
On irreducible pseudo symmetric ideals of a partially ordered ternary semigroup, pp.169-180

### vol.30 (2022) No. 2

** S.A. Abdul-Kareem and A.A. Abdulkareem**

Applications of $\bigcap$-large pseudo N-injective acts in quasi-Frobenius

monoid theory and its relationship with some classes of injectivity, pp.181-191

** W.A. Dudek and R.A.R. Monzo**
Translatable isotopes of translatable quasigroups, pp.193-208

** W. Jantanan, N. Raikham and R. Chinram**
On right bases of partially ordered ternary semigroups, pp.209-218

** Kh. Keshvardoost and M. Haddadi**
Projective finitely supported M-sets, pp.219-240

** B. Khanra, M. Mandal and S. Das**
A note on 2-prime and n-weakly 2-prime ideals of semirings, pp.241-256

** H.S. Kim and J.H. Kim**
Left twisted rings, pp.257-262

** T. Kumduang**
Menger hypercompositional algebras represented by medial n-ary hyperoperations, pp.263-274

** S.K. Maity and M. Paul**
Topological S-act congruence, pp.275-286

** N.A. Moldovyan**
Algebraic signature algorithms with a hidden group group,
based on hardness of solving systems of quadratic equations, pp.287-298

** M.A. Morshedlo and M.M. Nasrabadi**
On the weight of finite groups, pp.299-306

** A. Paad**
The relationship between EQ algebras and equality algebras, pp.307-315

** D.A. Romano**
Normal filter in quasi-ordered residuated system, pp.317-327

** S. Sidana**
Loop algebra $F[M(C_p^m\rtimes C_2,2)]$, pp.329-338