Eusebio, M., Franco, C., Gervacio, L., & Natividad, R. (1986). Plant design for the extraction and manufacture of papaverine cinchonidine and rutin tablets from lagundi leaves. College of Engineering.

Eusebio, Manuel, Chito Franco, Lily Gervacio, and Ronaldo Natividad. Plant Design for the Extraction and Manufacture of Papaverine Cinchonidine and Rutin Tablets from Lagundi Leaves. Diliman, Quezon City: College of Engineering, 1986.

Eusebio, Manuel, et al. Plant Design for the Extraction and Manufacture of Papaverine Cinchonidine and Rutin Tablets from Lagundi Leaves. College of Engineering, 1986.