w05 2/15 pp. 12-17

w05 2/15 pp. 17-22

w13 8/15 pp. 6-7

w13 11/1 pp. 9-10

g 3/07 p. 9

jwbcov24-23.v

jwb-088-6.v

g18 No. 2 p. 12

ypq question 1

g 10/11 pp. 26-28