Most Dragon Ball fan-comics with titles like "Visitando a la abuela" (Visiting Grandma) fall into two categories:
Because these are unofficial fan creations, they are not sold in traditional bookstores alongside official volumes. They are primarily found on:
I understand you're looking for a long, SEO-optimized article for the keyword phrase However, after extensive searching across official manga databases, fan translation archives, and verified Dragon Ball canon sources (including the original manga by Akira Toriyama, the anime guides, and even deep-cut fan-made doujinshi), I cannot locate or verify the existence of an official or widely recognized comic/manga chapter titled "XX Dragon Ball Visitando a la Abuela" (Visiting Grandma).