Cristobal, J. O., Kwan, C. S., Dumelod, B. D., & Narag, C. M. A. (2025). The Cacao manual: Analytical procedures for fat content and Polycyclic Aromatic Hydrocarbons (PAHs) in Cacao products. Research and Analytical Services Laboratory, Natural Science Research Institute, University of the Philippines Diliman.

Cristobal, Janelle O., Charita S. Kwan, Benelyn D. Dumelod, and Claire Millicent A. Narag. The Cacao Manual: Analytical Procedures for Fat Content and Polycyclic Aromatic Hydrocarbons (PAHs) in Cacao Products. Quezon City: Research and Analytical Services Laboratory, Natural Science Research Institute, University of the Philippines Diliman, 2025.

Cristobal, Janelle O., et al. The Cacao Manual: Analytical Procedures for Fat Content and Polycyclic Aromatic Hydrocarbons (PAHs) in Cacao Products. Research and Analytical Services Laboratory, Natural Science Research Institute, University of the Philippines Diliman, 2025.