It seems everything I've been able to find has been from the US or South Vietnamese perspective.
I'd really like to hear some first hand accounts from North Vietnamese soldiers, generals and the like. Where can I find that?
"People's War, People's Army" by Vo Nguyen Giap is a must read for anything PAVN/Viet Cong related.
"Last Night I Dreamed Of Peace" by Dang Thuy Tram
"A Vietcong Memoir" by Troung Nhu Tang
When Heaven and Earth Changed Places by Le Ly Hayslip. A must read.