Report - GM 412 - Ramkhamhaeng Universityold-book.ru.ac.th/e-book/g/GM412/gm412-3.pdflll~p ii X0 XI X3 SI sa s4 wa&% X0 0 1 -8 -6 0 0 0.O 0 I-46100 12+12/40 = 3 s2 2 --640 100 6 Sl 3 -040010

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