8 1 30 before & during the covid-19 pandemic Sugeng, Bayu Surya Pamugar Primary Author mixed material Bayu_Surya_Pamugar_Sugeng.jpeg.jpeg Miles, Martin J. Primary Author mixed material 0137630867 Englewood Cliffs Prentice-Hall 1982 real+estate+investor.jpg Ringer, Robert J. Primary Author mixed material 0449207862 New York Fawcett Crest 1974 winning+through+intimidation--ringer.jpg Tjahjono, Budi Primary Author Hamid, R. Abdullah Primary Author Mawardi Primary Author mixed material Jakarta IPMI 1999 GFP+Cover.jpg Wilasno, Stanislaus Primary Author mixed material Jakarta IPMI 1996 GFP+Cover.jpg a fundamental problem Chivayo, Abias Primary Author mixed material Jakarta IPMI 1995 GFP+Cover.jpg companies strategies Soebari, R.Bambang Primary Author Munzir, Chaerul A. Primary Author Maswir, Devid Primary Author Soeprantijo, Bambang S. Primary Author Ananda, Indra dipa Primary Author mixed material n.a IPMI 1993 GFP+Cover.jpg Agustriani, Dessy Primary Author Cahyadi, Johan Cakra Primary Author Alaidarous, Manal Primary Author Zakaria, Rachel Inggrid Primary Author Santoso, Slamet Primary Author mixed material Jakarta IPMI Business School 2008 GFP+Cover.jpg