Nutrition and Physical Degeneration has fascinating descriptions of a wide variety of indigenous or isolated people. And it is the original paleo diet book! Almost. Of course, it does not have the depth of description of individual cultures that the other books have.
Haven't read this one yet, "Original Wisdom: Stories of an Ancient Way of Knowing" . Author Robert Wolff is a social psychologist who grew up with indigenous people in Indonesia, and then studied tribal cultures in Suriname and the Pacific Islands - may be useful?
I heard Helena Norberg-Hodge discuss her book "Ancient Futures: Learning from the Ladakh" over a decade ago - she lived with the Himalayan Ladakh Buddhist indigenous people for some time I recall. May also be worth taking a look at?
Bruno Manser. Kampf um den Regenwald.**its actually a documentary about a swiss guy who lived with the pennan tribe in borneo kalimantan and teached them to make nonviolent ressistence agianst lodging. Still they are lodging the rainforest for palmoil in borneo.
jean liedoff continium concept.
this is a female scinetist who travels to the rainforest and find a way of how we can relearn to grow up our children in a different way.
Vladimir Megre Anastasia and the ringing cedar. this is a semifictional first hand experience book. its a bit miriacle fantastic writien in a russain picturing style.