Artikel Jurnal
Andi Setyo Pambudi, author
Badan Perencanaan Pembangunan Nasional (BAPPENAS), 2019
Artikel Jurnal
Lamb, Harold, author
Doubleday, 1955
Buku Teks
Fraser, John Munro, author
London, Sir Issac Pitman
Buku Teks
Tarantino, Angelo Marcello, author
Springer Nature, 2019
eBooks