Where can I buy hinges that hold the cabinet doors open?

I used these. They're the same as the ones Northern Lite uses on their overhead cabinets. They work great and you only need one for each door. Don't know why they didn't put them on there in the first place. -Mark.

http://www.rvdiscountsuppliers.com/hardware/cabinet-door-supports/cabinetdoor-spring-support-rv-camper-trailer-parts.html