Does anyone out there have an old textbook about learning Moiyen Hakka? I was born in Montreal and my parents are both Hakka from Calcutta.  They never taught me the language and now in my thirties, I'm realizing how important it is to me to go back to my roots.  I want to learn my mother tongue!  

Would anyone out there have any good resources, recordings, textbooks, etc. that would help me learn the basics?  I have already seen Eric Chen's Youtube lessons, which are great, but unfortunately, quite limited.
There is a book entitled Dialect  and  Folkways  Handbook  in  Meizhou (梅州方言民俗图典) that you can purchase but it is probably more like a dictionary than anything else. 

Resources for, specifically, Moiyen (梅州) Hakka are going to be far more scarce than for a broader topic like the Hakka language in general.

Searching for Meixian (梅縣) Hakka would even greatly increase the number of results you get. 


现代汉语方言音库・梅县话音档
梅县客家方言志 
梅县方言词典