1. Andean ( 2020 ). Advances in the Peruvian economy: How did we get to the Bicentennial? Retrieved from: https://andina.pe/agencia/noticia-avances-de-economia-peruana-como-llegamos-al-bicentenario-851633.aspx Andean (2020). Advances in the Peruvian economy: How did we get to the Bicentennial? Retrieved from: https://andina.pe/agencia/noticia-avances-de-economia-peruana-como-llegamos-al-bicentenario-851633.aspx
2. Management ( 2019 ). Inventories will be at a desired level in two months. Retrieved from: https://archivo.gestion.pe/noticia/339777/inventarios-se-situarian-nivel-deseado-dos-meses Management (2019). Inventories will be at a desired level in two months. Retrieved from: https://archivo.gestion.pe/noticia/339777/inventarios-se-situarian-nivel-deseado-dos-meses
3. Agricultural Network ( 2019 ). Production of cocoa beans grew 12.6% per year in the last decade. Retrieved from: https://www.redagricola.com/pe/produccion-de-cacao-en-grano-crecio-126-al-ano-en-la-ultima-decada/ Agricultural Network (2019). Production of cocoa beans grew 12.6% per year in the last decade. Retrieved from: https://www.redagricola.com/pe/produccion-de-cacao-en-grano-crecio-126-al-ano-en-la-ultima-decada/
4. Agricultural Network ( 2019 ). Production of cocoa beans grew 12.6% per year in the last decade. Retrieved from: https://www.redagricola.com/pe/produccion-de-cacao-en-grano-crecio-126-al-ano-en-la-ultima-decada/ Agricultural Network (2019). Production of cocoa beans grew 12.6% per year in the last decade. Retrieved from: https://www.redagricola.com/pe/produccion-de-cacao-en-grano-crecio-126-al-ano-en-la-ultima-decada/
5. Material management without forecasting: From MRP to demand driven MRP