José SRC, Otoniel MSP, Edgardo CSL. Marketing 4.0 to Improve the Positioning of the Optical Products of a Private Company, Trujillo, Peru. ijmst [Internet]. 2024Jan.23 [cited 2024Jul.3];10(3):3631-47. Available from: https://cosmosscholars.com/phms/index.php/ijmst/article/view/3427