Madrid, M. L., Yuchingtat, G. P., Orense, C. L., & Tanchoco, C. C. (2011). Comparison of energy expenditures for selected physical activities of 61 to 68 years old female older persons using the international physical activity questionnaire, factorial method and doubly labeled water technique. Philippine Journal of Nutrition.

Madrid, Marilou L., Gemma P. Yuchingtat, Consuelo L. Orense, and Celeste C. Tanchoco. "Comparison of Energy Expenditures for Selected Physical Activities of 61 to 68 Years Old Female Older Persons Using the International Physical Activity Questionnaire, Factorial Method and Doubly Labeled Water Technique." Philippine Journal of Nutrition 2011.

Madrid, Marilou L., et al. "Comparison of Energy Expenditures for Selected Physical Activities of 61 to 68 Years Old Female Older Persons Using the International Physical Activity Questionnaire, Factorial Method and Doubly Labeled Water Technique." Philippine Journal of Nutrition, 2011.