& z0 u7 H2 U* R. o' J: N0 h1. probability and statistics for engineers and scientists, statistics 235, custom edition ! p. N3 x$ e; s" Q' w( g$ X3 c2. mechanics of materials, ninth edition / d z( ~3 d$ ]- i5 _2 p3. the properties of petroleum fluids, second edition 6 t& c4 b0 Y$ g3 E7 ?% L* b' s! |3 n' c
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