How to make the reference on WOU official ebook which there is no author ?

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How to make the reference on WOU official ebook which there is no author ?

Example you take a reference from WOU official ebook in your TMA  as   

Incorrect:
"The following 7 steps of decision making(Wawasan Open University 2013) why I select WOU’s MBA"

Wawasan Open University. "Decision-making models." In Management in Organisations U2, by Dr. Kelly LeCouvie and Professor Dr. Madhulika Kaushik, 10. Penang: Wawasan Open University, 2013.


Correct:
"The following 7 steps of decision making (LeCouvie, K. and Kaushik, M. 2013) why I select WOU’s MBA"

LeCouvie, K. and Kaushik, M.(2013). Unit 2: Decision Making [Module notes]. Penang: Wawasan Open University.


You may use this format:

Author Last Name, First Initial. Middle Initial. (Year). Title of handout [Class handout]. Place of Publication: Institution.
Eg:   Woodworth, M. A. (2013). Psychopaths [Class handout]. Bloomington, MN: Rasmussen College.