Davvaz, Bijan <br/><br/>
Semihypergroup Theory 

 -  Elsevier  2016 
<br/><br/><label>ISBN: </label>9780128098158 
<br/><br/><label>Source: </label>EBOOK 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics