Goddard-Paz, Lisa Elena.
" Austrian Observations of Luzon in the 1878 Book Fragments Concerning a Geology of the Island of Luzon by Richard Freiherr von Drasche-Wartinberg, Translation of Chapter 6: Benguet" <em>Social Science Diliman: A Philippine Journal of Society and Change</em> [Online], Volume 19 Number 2 (4 September 2025)