TY - BOOK AU - Wu, Loise S., TI - Product testing with consumers for research guidance SN - 0803112564 U1 - 658.8/35 20 PY - 1989/// CY - Philadelphia, PA PB - ASTM KW - New products KW - Congresses KW - Commercial products KW - Testing KW - Consumers' preferences KW - Business Administration KW - Tiếp thị KW - Sản phẩm mới KW - Marketing ER -