1.
Greening of the Supply Chain: An Empirical Study for SMES in the Philippine Context
by Rao, Purba
Journal of Asia business studies, 2007-05-01, Vol.1 (2), p.55-66

2.
EXPLORING ENVIRONMENTAL MANAGEMENT SYSTEMS AND THEIR IMPACT IN SOUTH EAST ASIA
by Purba Rao
The Asia Pacific journal of economics & business, 2000-12-01, Vol.4 (2), p.74
