Whenever I come across family history books I am so enthralled in reading them. It's amazing one person's life experiences, let alone a family's journey. I have used Family History Books website that has help me in my Samoan Research. I hope it helps you.
From their website:
Family History Books is a collection of more than 40,000 digitized genealogy and family history publications from the archives of some of the most important family history libraries in the world. The collection includes family histories, county and local histories, genealogy magazines and how-to books, gazetteers, and medieval histories and pedigrees. The valuable resources included in Family History Books come from the following partner institutions:
Allen County Public Library
Brigham Young University Harold B. Lee Library
Brigham Young University Hawaii Joseph F. Smith Library
Church History Library
Family History Library
Houston Public Library - Clayton Library Center for Genealogical Research
Mid-Continent Public Library - Midwest Genealogy Center
One of my nice finds was a missionary journal of Aioulu Tu'ua containing genealogy of families in Samoa.
Aioulu has an accounting of my grandmother Mataniu's family: Manulua Tapasa (my 4th great grandfather) married Pisilaula. Pisilia Ula is from the Tuitonga line. This is where one of my many tongan lines come in. Awesome. Take a look at this Family History Books website. Share what you find.