This book, is a mix-n-match combo, from various other books which includes, DamarTAJI's "Dapur", Tammens, "De Kris - Magic Relic of Old Indonesia', the book regarding hilts.. Malayan Branch Royal Asiatic Society, "The Keris and other Malay Weapons", based on the sample pages. Whether it's a legitimate book, I have no idea.
It can be purchased from, ((
here )).. a bit of info ((
here )).