Chapter 12 recommended problems:
1-32, 45-62, 65-86, 89-98

Chapter 13 recommended problems:
1-22, 27-40, 45-70, 72, 74-86

Chapter 14 recommended problems:
1-8, 11-22, 25, 29, 30, 33-38, 41-50, 57-58, 67-68, 73-74, 83-84, 87-88, 102-104, 107-114, 116

Chapter 15 recommended problems:
1-12, 15-16, 17a,d,e,f, 18a,d,e,f, 19e,f, 20e,f, 21-22, 25-28, 29b, 31-34, 37-46, 47d,e,f, 48a,c,e,f, 49b,c,d, 50-58, 61-74, 82, 84, 86-91

Chapter 16 recommended problems:
1-4, 7-8, 13c, 14c, 29, 30, 33a,b,c, 34a,b,c, 43a,b, 44a,b,d, 47a,d, 48a,d, 49, 50, 51a,b,c, 52b,c, 53-56, 61a-e, 62c,f, 63a,e, 64b,c,e, 73-82, 106a,c,d, 108

Chapter 17 recommended problems:
1-42, 47-56, 59, 61-68, 73-84, 89a,c,e, 90, 93, 94, 96-98, 100-104.

Chapter 18 recommended problems:
1-22, 37-38, 53, 58, 59, 60, 69, 70, 71, 75, 76, 87a,b,c, 88a,b,c, 89-100, 107-113

Chapter 19 recommended problems:
1-6, 9-12, 17, 18, 23-32, 37-40, 43-46, 49, 53-56, 79, 83, 84, 87, 88

Chapter 20 recommended problems:
TBA