Siswoko, T., H. Haryanto, K. Hastuti, and R. Kadiasti. “Non-Playable Character (NPC) Based on Behaviour Tree for Enhanced Immersive Experience in the Serious Game "Warik’s Adventure"”. Journal of Applied Informatics and Computing, Vol. 7, no. 2, Dec. 2023, pp. 284-90, doi:10.30871/jaic.v7i2.6753.