"Significant events and dates of Bikol history". by Del Prado, Mariano Goyena

"The story of Daraga". by Del Prado, Mariano Goyena

"The sinalampati". by Del Prado, Mariano Goyena

"309 years of History". by Del Prado, Mariano Goyena

"Unique town of Albay". by Del Prado, Mariano Goyena

"What and where is Ibalon/". by Del Prado, Mariano Goyena

"Albay". by Del Prado, Mariano Goyena

"Casos de longevidad". by Del Prado, Mariano Goyena

"El extinto pueblo de Budiaw". by Del Prado, Mariano Goyena

"Legazpi". by Del Prado, Mariano Goyena