Phrakhru Wichak Thammarat, Phrakhru Pariyatpattanabundit and Phrakhru Sudhikhambhirayan 2024. The Application Of The Four Brahmavihāra Principles Of Moral Teaching Monks In Na Kaeo Subdistrict Schools, Phon Na Kaeo District, Sakon Nakhon Province. Educational Administration: Theory and Practice. 30, 6 (Jun. 2024), 351–358. DOI:https://doi.org/10.53555/kuey.v30i6.5199.