Fadilah, S. N., Marfu’ah, S. and Wonorahardjo, S. (2020) “Edu-Kit ‘Our Coffee’ Development on Problem Based Learning Model for Vocational Agribusiness and Agrotechnology Programs on Material Separation Mixture”, International Journal of Interactive Mobile Technologies (iJIM), 14(12), pp. pp. 41–53. doi: 10.3991/ijim.v14i12.15571.