TNNL - What does TNNL stand for? The Free Dictionary
References in periodicals archive
(76) This is especially true when it was used in the historical epic to recount the national past as illustrated by the end of the seventeenth century, anonymous Thien nam ngu luc (Annals of the Heavenly South, henceforth TNNL).
TNNL reflects a national character close to popular beliefs.