De or het bestelbrief?

The correct Dutch article is:

de bestelbrief

How to use bestelbrief

the bestelbriefde bestelbrief
this bestelbriefdeze bestelbrief
that bestelbriefdie bestelbrief
our bestelbriefonze bestelbrief
your bestelbriefjouw bestelbrief
every bestelbriefelke bestelbrief
which bestelbrief?welke bestelbrief?
a big bestelbrief / the big bestelbriefeen grote bestelbrief, de grote bestelbrief