The teenagers play for Barca's B team, among several young Cameroonians in the Spanish club's academy following Samuel Eto'o's stint there, and earn their first call-up for the Indomitable Lions to join Barca's former Arsenal midfielder Alexandre Song.
Forward Dongou was on the bench for Barca's first team in Champions League action at Ajax Amsterdam in November and scored in a King's Cup game against Cartagena the following month.
Cameroon, who have been drawn in Group A with hosts Brazil, Croatia and Mexico at the World Cup finals starting in June, are without injured midfielder Stephane Mbia and forward Achille Webo for the match in Leiria.
Spain-based pair Raoul Cedric Loe and Fabrice Olinga have been dropped by coach Volker Finke.
Goalkeepers: Guy-Rolland Assembe (Guingamp), Charles Itandje (Konvaspor), Sammy Ndjock (Antalyaspor)
Defenders: Benoit Assou-Ekotto (Queens Park Rangers), Macky Frank Bagnack (Barcelona), Henri Bedimo (Olympique Lyon), Gaeten Bong (Olympiakos Piraeus), Aurelien Chedjou (Galatasaray), Jean-Armel Kana Biyik (Stade Rennes), Nicolas Nkoulou (Olympique Marseille), Dany Nounkeu (Besiktas), Allan Nyom (Granada)
- Sports & Recreation
- Alexandre Song
- Ajax Amsterdam