- Small scale aquaponic food production. Integrated fish and plant farming, FAO, http://www.fao.org/in-action/globefish/publications/details-...

- The Aquaponic Farmer: A Complete Guide to Building and Operating a Commercial Aquaponic System, Southern and King, https://www.amazon.com/Aquaponic-Farmer-Complete-Operating-C...

Then we visited several operating facilities, including:

- Oberous Farms, https://www.ouroborosfarms.com

- Duurzame Kost, https://duurzamekost.nl

Then we have done a ton of research ourselves.