mwb25.05 p. 2

scl p. 118-120

mwb23.07 p. 7

lff leksion 37 punto 1-4

g21 No. 1 p. 8

w19.12 p. 2-7

lvs kap. 15

lv kap. 15

mwb16.11 p. 4

w15 7/15 p. 20-21

nwt p. 24

w05 6/15 p. 4-8

w03 2/1 p. 4-7

w99 11/1 p. 32

ijwhf artikulo 36

g19 No. 2 p. 10-11

g17 No. 3 p. 8-9

w03 2/1 p. 5-6

w99 7/1 p. 11 par. 14

w07 2/15 p. 24

lr kap. 42