Wilujeng, Ita Prihatining. 2008. “NALISIS ENGARUH IKAP ONSUMEN AN ORMA UBYEKTIF TAS ELAYANAN ERHADAP IAT ELAKUKAN EMBELIAN LANG ADA ERUSAHAAN ORWARDING”. urnal konomi odernisasi 4 (2):116-26. http://ejournal.unikama.ac.id/index.php/JEKO/article/view/881.