Mohd Hafiyyan Mahmud, Khai Ern Lee, Sharina Abdul Halim, Mazlin Mokhtar, Ah Choy Er.  (2021).  Governance for Sustainable Development in Southeast Asia.  - .  120. 

Lee Khai Ern, Mazlin Mokhtar, Marlia Mohd Hanafiah, Azhar Abdul Halim.  (2021).  Bahan Kimia dalam Kehidupan Harian: Adakah Kita Selamat?.  - .  19. 

Goh Choo Ta, Mazlin Mokhtar, Lee Khai Ern, Lubna Alam.  (2021).  Bahan Kimia dalam Kehidupan Harian: Adakah kita selamat?.  - .  23. 

Noor Syazwani Hassan, Khai Ern Lee, Mazlin Mokhtar, Choo Ta Goh.  (2020).  Concepts and Approaches for Sustainability Management.  - .  118. 

Nur Aizat Kamarulzaman, Khai Ern Lee, Kim Shyong Siow.  (2020).  Concepts and Approaches for Sustainability Management.  - .  21. 

Mohd Hafiyyan Mahmud, Khai Ern Lee, Mazlin Mokhtar, Sharina Abdul Halim.  (2020).  Concepts and Approaches for Sustainability Management.  - .  16. 

Nur Khairlida Muhamad Khair, Khai Ern Lee, Mazlin Mokhtar, Choo Ta Goh.  (2020).  Concepts and Approaches for Sustainability Management.  - .  118. 

Suganty Kanapathy, Khai Ern Lee, Mazlin Mokhtar, Subarna Sivapalan, Sharifah Zarina Syed Zakaria, Azizah Mohd Zahidi.  (2020).  Concepts and approaches for sustainability management.  - .  22. 

Mohamad Muhyiddin Hassan, Khai Ern Lee, Mazlin Mokhtar.  (2020).  Concepts and Approaches for Sustainability Management.  - .  118. 

Mokhtar Mokhtar, Minhaz Farid Ahmed, Rasyikah Md. Khalid, Ern Lee Khai.  (2019).  Sustainable Development Goals Multiple Perspectives.  - .  14. 

Mazlin Bin Mokhtar, Rasyikah Md Khalid, Minhaz Farid Ahmad & Lee Khai Ern.  (2019).  Sustainable development goals: multiple perspectives.  - .  15. 

Goh Choo Ta, Mazlin Mokhtar, Khai Ern Lee & Lubna Alam.  (2018).  Environmental Risk Analysis for Asian-Oriented, Risk-Based Watershed Management : Japan and Malaysia.  - .  24. 

Khai Ern Lee, Ramli Abdullah, Marlia Mohd Hanafiah, Azhar Abdul Halim, Mazlin Mokhtar, Choo Ta Goh & Lubna Alam.  (2018).  Environmental Risk Analysis for Asian-Oriented, Risk-Based Watershed Management : Japan and Malaysia.  - .  8. 

Lubna Alam, Mazlin Mokhtar, Goh Choo Ta, Khai Ern Lee, Mohd Talib Latif.  (2018).  Environmental Risk Analysis for Asian-Oriented, Risk-Based Watershed Management : Japan and Malaysia.  - .  16. 

Goh Choo Ta, Lee Khai Ern, Lubna Alam & Mazlin Mokhtar.  (2018).  Membudayakan Kelestarian Dua Dasawarsa LESTARI di Persada Dunia.  - .  20. 

Khairul Nizam Abdul Maulud, Wan Hanna Melini Wan Mohtar, Zaini Sakawi, Roshana Mat Rafar, Siti Fatin Mohd Razali, Rawshan Ara Begum, Lubna Alam, Lam Kuok Choy, Mokhtar Jaafar [and (three) others].  (2015).  Kesan hakisan pantai dan kenaikan paras air laut di Batu Pahat (Impak kepada Komuniti Setempat).  - .  Bab 2 : 7-18.