Welcome to the Forum to both of you. Wal is unfortunately all too correct - there is simply
no book, in or out of print on the subject of khukuris. John Powell, an advanced collector and scholar, is working on a book, but it is still several years from publication. There are good articles or chapters in George Cameron Stone's
Glossary of Arms and Armor
(now available in a paperback reprint from amazon.com or Barnes & Noble - and yes, it is pricey, but the hardbound originals go for fifty bucks) or P.S. Rawson's
The Indian Sword (occasionally offered on eBay, and will make you think Stone was cheap by comparison). Howard Wallace's Khukuri FAQ is by far the best compendium of available information. HI & GH websites contain useful info. Check every search engine you know for khukuri, kookerie, kukri, khukri, kukhri,, Gurkha, Gurka, Goorkha, Ghurka, and any other spelling you can think of, and let us know if you come up with anything good

.