Rodgers, Mark
Accelerate the sale : kick-start your personal selling style to close more sales, faster
McGraw-Hill , 2011
 Buku Teks SO
Lapp, Charles L.
Successful selling strategies : how to climb the ladder to sales succes
McGraw-Hill, 1957
 Buku Teks SO
Allen, Peter
Selling
Pitman, 1998
 Buku Teks SO
Ahmad Hargi Septiawan
Evaluasi pelatihan Selling Skill karyawan bagian Sales Promotion Girl PT. Guna Layan Kuasa Jakarta Pusat = Evaluation training of Selling Skill about employees sales Promotion Girl employees PT. Guna Layan Kuasa Jakarta Pusat
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
 UI - Skripsi Membership
Wingate, John W.
Fundamentals of selling
South-Western Publishing, 1959
 Buku Teks SO