(PDF) Managing Service Innovation: Variations of Best Practice
https://www.researchgate.net/publication/279610993_Managing_Service_Innovation_Variations_of_Best_Practice
(PDF) The Effect of Service Product Innovation Management on Market Performance through Organizational Culture: In Context of Service Product Industry
https://www.researchgate.net/publication/271666441_The_Effect_of_Service_Product_Innovation_Management_on_Market_Performance_through_Organizational_Culture_In_Context_of_Service_Product_Industry
Service Innovation: Organizational Responses To Technological Opportunities … – Google Books
https://books.google.co.uk/books?hl=en&lr=&id=1Om3CgAAQBAJ&oi=fnd&pg=PR5&dq=tidd+and+hull+service+innovation&ots=Ori5X_fNMu&sig=d2Wq0481Odas6plyIxN3zs5OM7o#v=onepage&q=tidd%20and%20hull%20service%20innovation&f=false
Measuring for Innovation – a guide for innovative teams
https://www.researchgate.net/publication/256116377_Measuring_for_Innovation_-_a_guide_for_innovative_teams
Absorptive Capacity: A New Perspective on Learning and Innovation
https://www.jstor.org/stable/2393553?seq=1#page_scan_tab_contents
Innovation and Learning: The Two Faces of R & D
https://www.jstor.org/stable/2233763?seq=1#page_scan_tab_contents