Marisa, H., & Estuningsih, S. P. (2017). HORMESIS PHENOMENA OF SOME PARAMETER ASPECT IN USAGE OF WATER LETTUCE (Pistia stratiotes L.) FOR PHYTOREMEDIATION PROCESS OF PETROLEUM LIQUID WASTE. BIOVALENTIA: Biological Research Journal, 3(1), 45–50. https://doi.org/10.24233/BIOV.3.1.2017.59