NNNguyen Ngoc ThanhBooks and models by this designerModels 1Books 1Books (1)All books that include models by this designer.Olympiad 2018 - Round 12018Models: 3International Origami Internet Olympiad (IOIO)Models (1)All models by this designer.Jumping spiderOlympiad 2018 - Round 1 · p. 11