1. Assessment of municipal solid waste management system in a developing country;Ahsan;Chin. J. Eng.,2014
2. System Dynamics: Modelling and Simulation;Bala,2017
3. Wastepickers: Delhi’s Forgotten Environmentalists? Chintan;Chintan,2018
4. India’s Paper Consumption Set to Double by 2020;Das,2013
5. Demographics, Maps, Graphs,2020