Dr Irma Wani Othman. 2019. “PERSONALITI OPTIMISTIK SEBAGAI FAKTOR PENENTU ADAPTASI SOSIO BUDAYA AKADEMIK EKSPATRIAT DI UNIVERSITI AWAM MALAYSIA”. ADVANCED INTERNATIONAL JOURNAL OF BUSINESS, ENTREPRENEURSHIP AND SME’S (AIJBES) 1 (2):01-13. https://gaexcellence.com/aijbes/article/view/164.