Using the topic Optimizing Last$-$mile Delivery in Urban Areas: A Comprehensive Analysis of sustainable solutions

$*$Do a related theory$/$Model

$*$Need to find a supporting theory for each research with examples

$*$Please don't give AI based answers. Thank you $*$I don't mind sir$/$madam taking time to answer this question but please make sure to give accurate answer and elaboration $*$Exp$..-$Co$-$creation value, according to Jenal et al$.(2021),$ is a concept that calls for user participation in the production of services. Co$-$creation value is the value produced by businesses that offer services to customers in order to integrate operations based on resource availability and assess the level of service quality