By Thompson Kenneth N   Coe Barbara J   Lewis John R   in The Journal of Business and Industrial Marketing

ISSN:0885-8624|9|2|29-40

Emerald Group Publishing Ltd‎(1994)‎

Access to resources Favorite 7.959024

By Lewis John R.   in Natural Product Reports

ISSN:0265-0568|15|4|371-395

R S C Publications‎(1998)‎

Access to resources Favorite 3.2035096