Y. Kristiyono and C. Felim, “PENGARUH INTERPERSONAL INFLUENCE, ALTRUISM, DAN ENVIRONMENT KNOWLEDGE TERHADAP GREEN PURCHASING BEHAVIOUR KONSUMEN THE BODY SHOP YANG DIMEDIASI OLEH ENVIRONMENT ATTITUDE”, Ultima Management : Jurnal Ilmu Manajemen, vol. 13, no. 1, pp. 47-61, Jun. 2021.