4 1 50 Syaifudin Zuhri Primary Author mixed material 9786233763257 Yogyakarta Graha Ilmu 2023 138.jpeg.jpeg Muhammad Syahidin Primary Author Syamsul Alam Additional Author mixed material 9786235389646 Yogyakarta KBM Indonesia 2022 Lucas, Stephen E. Primary Author mixed material 9780073135649 Boston McGraw-Hill 2007 WhatsApp_Image_2022-09-13_at_09.27.32.jpeg.jpeg a guide for the engaged communicator Nelson, Paul E. Primary Author Scott Titsworth Additional Author Judy C. Pearson Additional Author mixed material 9780073112589 Boston McGraw-Hill 2007 WhatsApp_Image_2022-09-07_at_14.33.45_%281%29.jpeg.jpeg