N. K. Jha

Production of biogas from Azolla pinnata R.Br and Lemna minor L.: effect of heavy metal contamination.

S. K. Jain, Padma Vasudevan, P. Vasudevan, 1992 .

Azolla pinnata r.br. and lemna minor l. for removal of lead and zinc from polluted water

P. Vasudevan, S. Jain, N. K. Jha, 1990 .

Removal of some heavy metals from polluted water by aquatic plants: Studies on duckweed and water velvet

P. Vasudevan, S. Jain, N. K. Jha, 1989 .

Heavy Metal Uptake by Pleurotus sajor-caju from Metal-Enriched Duckweed Substrate

P. Vasudevan, S. Jain, G. S. Gujral, 1988 .