N. F. Mohamed Noor, Z. Zakariya, N. bt. R. Ramli, and A. Abdul Razak, “EKSTERNALITI MODAL MANUSIA RAKAN SEKERJA DAN UPAH INDIVIDU: BUKTI EMPIRIK DI SEKTOR PERKHIDMATAN DI MALAYSIA: Co-worker’s Human Capital and Individual Wage Externality: Empirical Evidence in Malaysia Service Sector”, MRJ, vol. 5, pp. 51–69, Oct. 2016.