Thai, Tran, Lam, Nguyen, Yen, Nguyen, AND Quang, Ngo. " Correlation between Oxygen Demand of Nematode Communities with Dissolved Oxygen in the Organic Shrimp Farming Ponds, Ca Mau Province" VNU Journal of Science: Natural Sciences and Technology [Online], Volume 34 Number 1 (23 March 2018)