id	domain	url
ajod-645	doi.org	https://doi.org/10.4102/ajod.v9i0.645
ajod-645	doi.org	https://doi.org/10.4102/ajod.v5i1.202
ajod-645	doi.org	https://doi.org/10.1177/1084713807308210
ajod-645	doi.org	https://doi.org/10.4102/ajod.v7i0.446
ajod-645	tradebarriers.org	http://tradebarriers.org/ntb/non_tariff_barriers
ajod-645	www.unescap.org	http://www.unescap.org/sites/default/files/benefits%20of%20cross-border%20paperless%20trade.pdf
ajod-645	financial-dictionary.thefreedictionary.com	http://financial-dictionary.thefreedictionary.com/tariff+barriers
ajod-645	doi.org	https://doi.org/10.4102/ajod.v4i1.91
ajod-645	doi.org	https://doi.org/10.4102/ajod.v6i0.280
ajod-645	doi.org	https://doi.org/10.1177/0305735618792440
ajod-645	www.uneca.org	http://www.uneca.org/sites/default/files/uploaded-documents/aec/2013/dr_a_makochekanwa_assessing_tf_on_trade_potential_submission.pdf
ajod-645	manzellareport.com	http://manzellareport.com/index.php/trade-finance/366-tariffs-and-non-tariff-barriers-and-how-they-impact-your-business
ajod-645	doi.org	https://doi.org/10.9790/487x-16112113116
ajod-645	doi.org	https://doi.org/10.4102/ajod.v6i0.206
ajod-645	doi.org	https://doi.org/10.4102/ajod.v4i1.95
ajod-645	doi.org	https://doi.org/10.4102/ajod.v5i1.189
ajod-645	doi.org	https://doi.org/10.4102/ajod.v7i0.460
ajod-645	doi.org	https://doi.org/10.4102/ajod.v5i1.215
ajod-645	doi.org	https://doi.org/10.4102/ajod.v7i0.322
ajod-645	doi.org	https://doi.org/10.1037/a0023779
ajod-645	www.un.org	http://www.un.org/disabilities/documents/convention/convoptprot-e.pdf
ajod-645	unstats.un.org	https://unstats.un.org/unsd/demographic/sconcerns/disability/default.htm
ajod-645	www.pecad.fas.usda.gov	https://www.pecad.fas.usda.gov/highlights/2009/06/zimbabwe/documents/drought_prone_areas.pdf
ajod-645	doi.org	https://doi.org/10.4102/ajod.v5i1.222
ajod-645	www.oecd.org	http://www.oecd.org/aidfortrade/47750237.pdf
ajod-645	lib.dr.iastate.edu	http://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=3536&context=etd
ajod-645	researchspace.ukzn.ac.za	http://researchspace.ukzn.ac.za/handle/10413/15338
ajod-645	doi.org	https://doi.org/10.1504/ijlsm.2018.092614
ajod-645	doi.org	https://doi.org/10.5897/ajbm11.2387