Pangulong Erap biograpiyang sosyopulitikal at pangkalinangan ni Joseph Ejercito Estrada - Salazar, Zeus A. (San Juan, Metro Manila RPG Foundation, 2005)
Tomo 1 Pinunong bayan : tungo sa hamon ng Edsa II.
Keywords: Presidents -- Philippines -- Biography; Motion picture actors and actresses -- Philippines -- Biography; Philippines -- Social conditions -- 1998-2004.; Philippines -- Politics and government -- 1998-2004.; Philippines -- Economic conditions -- 1998-2004.