Dutta Ratna  & Deb DB <br/><br/>
Taxonomic revision of Hedyotis L : (Rubiaceae) In Indian sub-continent .-81-8177-005-6 

 -  Botanical Survey of India, Kolkata, Kolkata  2004 
<br/><br/><label>ISBN: </label>81-8177-005-6 
<br/><br/><label>Dewey Class. No.: </label>I/