na YOGYA-05120000000248 20120507180334.0 ind 010-051200000000248 YOPDYOG 650 650 Yul S Yulianto, Metta 123 Unique business ideas Ide bisnis unik Metta Yulianto Jakarta Salemba Empat 2007 252 hlm . 21 cm Bisnis YOPDYOG 47050-PD/B.09 1