 East-Central New Guinea The Kuman people of this region were horticulturists who used basic tools such as the digging stick, wooden hoe, and wooden spade in their daily lives. Eventually they started to use more sophisticated tools such as iron spades and pick-axes.Nilles, John. "The Kuman people: A study of cultural change in a primitive society in the Central Highlands of New Guinea." Oceania (1953): 1-27.
<coherence>  East-Central New Guinea The Kuman people of this region were horticulturists who used basic tools such as the digging stick, wooden hoe, and wooden spade in their daily lives. Eventually they started to use more sophisticated tools such as iron spades and pick-axes.Nilles, John. "The Kuman people: A study of cultural change in a primitive society in the Central Highlands of New Guinea." Oceania (1953): 1-27.
 East-Central New Guinea 