Efisiensi Pemasaran Agroforestri Berbasis Kopi Berdasarkan Keragaan Pasar: Studi Kasus di Pekon Air Kubang, Tanggamus (Marketing Efficiency of Coffee-Based Agroforestry Based on Market Performance: A Case of Study in Air Kubang Village, Tanggamus) - Pratiwi, Annisa Marchantia (Universitas Lampung, 2019)