Thank you so much. can I reference to the first model you mentioned ? It seems that it is a report of a workshop. is the model valid to be used as a based model of a research? is there any article that has been published based on the result of that workshop?
In case you haven't used google scholar for referencing, click on the two blue speech marks " at the bottom of the link description and it will give you a selection of reference styles. Do let me know if I can help further or if the link does not work.