Tonga Language: The Tonga Phrasebook and Dictionary

If you are looking for the Tongan language of the South Pacific, do NOT buy this book. I just received it and began reading and it was instantly obvious that this is in an African language. After Googling several different words and phrases, I was getting results that referred to Swahili, Zambia, etc. I also Googled the author and found no information. The flag on the cover is the Tongan flag, so it is very misleading. It almost appears like this is some sort of scam. Amazon should discontinue the sale of this book immediately.