Multi-attribute group decision-making for solid waste management using interval-valued q-rung orthopair fuzzy COPRASFaizan Ahemad, Ahmad Zaman Khan, Mukesh Kumar Mehlawat, Pankaj Gupta and Sankar Kumar RoyRAIRO-Oper. Res., 57 3 (2023) 1239-1265DOI: https://doi.org/10.1051/ro/2023033