Purba AM, Indainanto YI, Safira C. Policy Communication in Developing Frankincense Commodity in Humbang Hasudutan Regency. jpr [Internet]. 2023 Jul. 28 [cited 2025 Dec. 19];2(2):6-10. Available from: https://idjpcr.usu.ac.id/jpr/article/view/13244