Zainal Abidin, Suriati Binti, et al. “A Systematic Analysis of Innovation Studies: A Proposed Framework on Relatioship Between Innovation Process and Firm’s Performance”. The Asian Journal of Technology Management (AJTM), vol. 4, no. 2, Dec. 2011, https://journal.sbm.itb.ac.id/index.php/ajtm/article/view/155.