reference book Bowen, David H. creator New York Software success 1991 Promotion (Page-1-2), Lead Generation (Page-2-2), Pricing (Page-3-2), Distribution (Page-4-2), Management Issues (Page-5-2), Customer Support And Technical Issues (Page-6-2). David H. Bowen Software development 005.1,BOW 0962596702 20220802102039.0