APA

(2018). Muda & Derhaka. Petaling Jaya, Selangor: Strategic Information and Research Development Centre (SIRD).

Chicago

2018. Muda & Derhaka. Petaling Jaya, Selangor: Strategic Information and Research Development Centre (SIRD).

Harvard

(2018). Muda & Derhaka. Petaling Jaya, Selangor: Strategic Information and Research Development Centre (SIRD).

MLA

Muda & Derhaka. Petaling Jaya, Selangor: Strategic Information and Research Development Centre (SIRD). 2018.