... $%&%'() *+, /0 -1234516 37&8*49:1; <-$%#-16 37&=: . %' &3 %phương ph p động l c h c >9,-#9 C DD9%&'&;E$,?#2+F&?5%#@G7,-DD!#,-;''&AB4'4%#@< ... <Y P ;FK07\0#;FT'?fee< P T P ?b P # P K07\+FT?fee` P a P beT P ?b5 P b5HT?feeL⇒T'?fee< P 5HT?feeLb P # P HPLdFK07\0#;F<Td?bd#dK07\+F`dadbeTd?b5db5d⇒<d5dbd#dI#! P bdby< P b<db<y# P b#db#⇒T'?fee<5HT?feeLb#HfL⇒<5b#HmL ... !+,3'$%&uK2d<'$%&u.$,"#+ P% YK'/!MK' P be9d5ydbe9f59A0'~;5bPeel ^C+ bPel?dV[=#576 A &<~' P 079# C+ A0',S P9 p #<#7+$"# P ...