Abdallah KZ, Hammam G. Correlation between Biochemical Oxygen Demand and Chemical Oxygen Demand for Various Wastewater Treatment Plants in Egypt to Obtain the Biodegradability Indices. IJSBAR [Internet]. 2014 Jan. 7 [cited 2024 May 16];13(1):42-8. Available from: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/1382