1. Abeliovich A, Azov Y (1976) Toxicity of ammonia to algae in sewage oxidation ponds. Appl Environ Microbiol 31:801–806
2. Abu Hajar, H (2016) Sustainable cultivation of microalgae using diluted anaerobic digestate for biofuels production. Electronic Thesis or Dissertation. Retrieved from https://etd.ohiolink.edu/
3. Acién FG, Fernández JM, Molina-Grima E (2013) Economics of microalgae biomass production. In: Pandey J, Lee DJ, Chisti Y, Soccol C (eds) Biofuels from algae. Elsevier, Amsterdam, pp 313–325
4. Allen MM (1968) Simple conditions for growth of unicellular blue-green algae on plates. J Phycol 4:1–4
5. APHA AWWA WEF (2017) Standard method for the examination of water and wastewater, 23rd edn Washington, USA