Phatthongkleang, T., Sangnoi, Y., O-Thong, S., Uppabullung, A. and Keawtawee, T. 2019. The Efficiency of Bacillus spp. to Remove Ammonia in Shrimp Aquaculture. Wichcha Journal Nakhon Si Thammarat Rajabhat University. 38, 1 (Jun. 2019), 1–15.