diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/40.electromagnetism/05.first-steps/textbook.es.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/40.electromagnetism/05.first-steps/textbook.es.md
index d2e3150e0..c736d3fe0 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/40.electromagnetism/05.first-steps/textbook.es.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/40.electromagnetism/05.first-steps/textbook.es.md
@@ -13,6 +13,10 @@ para todos los niveles
 
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+! Ver esta pagina  :   
+! en francés : https://m3p2.com/fr/lessons/brainstorming-g12-electromagnetism  
+! en inglés :  https://m3p2.com/en/lessons/brainstorming-g12-electromagnetism 
+
 ### Prefacio
 
 Este es una *etapa importante*, porque será