Robert J. Lang, treehopper, folded by me. It's my first lang bug from his bug book. My washi paper was strong enough to take the abuse of making this bug. : r/origami
Dover Origami Papercraft Ser.: The Complete Book of Origami : Step-by-Step Instructions in over 1000 Diagrams by Robert J. Lang (1989, Trade Paperback) for sale online | eBay
Fantastic Beasts and How to Fold Them: The INCREDIBLE Art of Origami Master, Dr. Robert J. Lang – Creative Parenting
The Complete Book Of Origami : Robert J Lang : Free Download, Borrow, and Streaming : Internet Archive
Robert J. Lang - Wikipedia
Black Forest Cuckoo Clock - Robert Lang Origami Time Lapse - YouTube