TY - JOUR TI - Novel Azo-fused Dipyrazolopyridine Derivatives using Waste Orange Peel-derived C-SO3H Nanopowder as an Efficient and Reusable Catalyst AU - Nagarajan Nagasundaram AU - Sivagiri Sumitha AU - Appaswami Lalitha PY - 2019 DO - 10.13074/jent.2019.12.194383 T2 - Journal of Environmental Nanotechnology JF - Journal of Environmental Nanotechnology JA - J. Environ. Nanotechnol. SP - 17 EP - 20 VL - 8 IS - 4 PB - Institute for Environmental Nanotechnology ER -