This is World's Finest Comics 3, published by Mimosa (SA Magazine Co) +/- 1963-1964.
It reprints the cover and all three stories from DC Comics' World's Finest Comics 133 (1963):
"The Beasts of the Supernatural"
Aquaman: "Aquaman's new partner -- Aqua-Girl"
Green Arrow: "The Thing in the Arrow Cave"
Also Reprinted is this story from Action Comics 239 (1958):
Congo Bill: "The puzzle of the jungle pyramid"
32 pages, glossy colour cover, black and white newsprint interior.
Here is the cover of issue 3 and DC Comics' original cover: