Nanda Ariska, Zultoni Lubis, Fadhilah Syafitri Rangkuti, Feny Feny, and Nabila Mutia Syifa, “The Influence of Green Marketing and Environmental Awareness on Purchase Decisions for Eco Friendly Tumbler Products”, BIJMT, vol. 6, no. 1, pp. 16–23, Feb. 2026.