with Viet Nam?country=Viet Nam?country=Viet Nam?country=Viet Nam?country=Viet Nam?country=Viet Nam?country=Viet Nam?country=Viet Nam inventory typically offer pricing models of CPM, % of Media Spend, flat_rate, CPA on channels such as Search, Social, Email, Mobile Display. A majority of their inventory are in countries such as United States, India, United Arab Emirates, Aruba, Russia