Sukhawatthanakun, K., Kultangwattana, W., Cherngsaard, J., Chaithong, K., Chorpraphan, S., Chaichanasaeng, S., & Sunarak, W. (2022). Marketing Plan of New Product Development Case Study of Processed Butternut Squash Products. Journal of Industrial Business Administration, 4(1), 15–26. retrieved from https://so03.tci-thaijo.org/index.php/iba/article/view/261990