Legaspi, P. E., Cabo, W. L., & Joaquin, M. E. T. (1998). Handbook on local economic promotion in the Philippines. Local Govt. Center, College of Public Administration, University of the Philippines Public Administration Promotion Centre, German Foundation for International Development.

Legaspi, Perla E., Wilhelmina L. Cabo, and Ma. Ernita T. Joaquin. Handbook on Local Economic Promotion in the Philippines. [Quezon City]: Local Govt. Center, College of Public Administration, University of the Philippines Public Administration Promotion Centre, German Foundation for International Development, 1998.

Legaspi, Perla E., et al. Handbook on Local Economic Promotion in the Philippines. Local Govt. Center, College of Public Administration, University of the Philippines Public Administration Promotion Centre, German Foundation for International Development, 1998.