Vásquez Carrera PJ, Hidalgo Osorio WA, Carrillo Velarde GG, Villarroel Herrera NJ. Selection and Design of a Jatropha curcas pinion oil extractor machine. CCD [Internet]. 2020Oct.5 [cited 2026Jun.10];3(4):26-4. Available from: https://doi.org/10.33262/concienciadigital.v3i4.1423