TrL Siig
Gi GE) Viel ; Nguyén Thi Quyen
——— f4 —-
_ bo —=.-
—— al -
5 ~ & “ -
a 7 _ „
= _ ko
» —
- = -
— — “ —
.c HƯXƯYẶN"” sua ~
—-eo -_
— —— — —
i aa
—
ee —_
—
-_
Trang 2
a eel
\ FL,Ì@J ma N, Tứ INJEE —NO—NO, er HNO;
O
NH,NO, L > N,>,+2H,50O
t° p.xt
t2 xt