You might consider citing the work of **Parguel, B., Guerrero, S., & Lombart, C. (2011)**, who published a relevant article on consumer behavior and green marketing. Their research could complement your study by providing additional insights into the motivations and preferences of consumers regarding sustainable practices and packaging. Here’s the full citation:
Parguel, B., Guerrero, S., & Lombart, C. (2011). Carrot or stick? The role of