Ford Lumban Gaol; Fonny Hutagalung; Chew Fong Peng <br/><br/>
The Social Sciences Empowered  Proceedings of the 7th International Congress on Interdisciplinary Behavior and Social Sciences 2018 (ICIBSoS 2018) 

 -  Taylor and Francis  2020 
<br/><br/><label>ISBN: </label>9780429444562 
<br/><br/><label>Source: </label>EBOOK