@article{paperid:1078142,
author = {علی پاکدامن and Torabi Ardakani, Hamid and Mashayekhy Fard, Behrooz},
title = {Category of $H$-groups},
journal = {Caspian Journal of Mathematical Sciences},
year = {2019},
month = {July},
issn = {2676-7260},
keywords = {H-group; sub-H-group;  quotient of  H -group},
}