Teacher EricI may be able to help you with that. I teach American accent and pronunciation in Manila, Philippines and one of the books I own has helped me greatly. I'm not sure if the book is available stateside but if you're interested, please post your email so I can send you the details.
Nice to meet you Teacher Eric. Can you share it with me, please ? My email: (email removed for your own protection, please register and add it to your profile)
Thanks a lot ^-^