** I. Bakayoko and S. Attan**
Some structures of Hom-Poisson color algebras, pp.1-16

** W.A. Dudek and R.A.R. Monzo**
Biquasigroups linear over a group, pp.17-29

** S. Ebrahimi Atani**
w-supplemented property in the lattices, pp.31-44

** S. Ebrahimi Atani, M. Khoramdel, S.D.P. Hesari, M.N.R. Alipour**
SS-supplemented property in the lattices, pp.45-59

**C.E. Haliya and G.D. Houndedji**
Hom-Jacobi-Jordan and Hom-antiassociative algebras with symmetric invariant nondegenerate bilinear forms, pp.61-88

** P. Luangchaisri and T. Changphas**
On completely regular 2-duo semigroups, pp.89-96

** D.N. Moldovyan, A.A. Moldovyan, N.A. Moldovyan**
A new design of the signature schemes based on the hidden discrete logarithm problem, pp.97-106

** P. Palakawong na Ayutthaya and B. Pibaljommee**
Characterizations of ordered k-regularities on ordered semirings, pp.107-121

** C. Punkumkerd and P. Honyam**
Magnifying elements of some semigroups of partial transformations, pp.123-132

** K. Siribute, P. Palakawong na Ayutthaya and J. Eanborisoot**
Characterizations of regularities on ordered semirings by idempotency of ordered ideals, pp.133-144

** G. Souza dos Anjos**
Half-isomorphisms whose inverses are also half-isomorphisms, pp.145-156

### vol.29 (2021) No. 2

** M. Afkhami, K. Khashyarmanesh and M. Sakhdari**

Annihilator graph of a commutative semigroup
whose zero-divisor graph is a refinement of a star graph, pp.157-170

** E.L. Bashkirov**
On the torsion in multiplicatively closed subsets of power associative algebrass, pp.171-176

** M. Bonatto and S. Fioravanti**
Mal'cev classes of left quasigroups and quandles, pp.177-192

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

** M. Iqbal and I. Ahmad**
On quasi-cancellative AG-groupoids, pp.209-212

** B. Khanra and M. Mandal**
Semigroups in which 2-absorbing ideals are prime and maximal, pp.213-222

** K.M. Lewis**
Semisymmetric quasigroups as alignments on abstract polyhedra, pp.223-242

** S.K. Mishra and R.P. Shukla**
On transiso-class graphs, pp.243-254

** S. Phuapong and T. Kumduang**
Menger algebras of terms induced by transformations with restricted range, pp.255-268

** A. Rezaei, H.S. Kim and J. Neggers**
Some applications of the independence to the semigroup of all binary systemss, pp.269-282

** U. Vishne**
Four halves of the inverse property in loop extensions, pp.283-302