$1!44!L6(BKK = s Phontics : $1!Pa!\(!R;!Xl!L{!`1 (B/ s - $1!Y8!7o!<cs ($1!T+!4I!<D (B: s $1!_,!DY!S43=T!C\!^v!3'!5-(B, s, 1991)